Installation Instructions
Contents
1. 51084 51084MX REVISED 12 21 05 Rear Installation 1 Block the front tires and raise the rear of raise the axle to unload the shocks for re the vehicle Support the frame with jack moval stands forward of the rear springs 5 Support the rear axle with a floor jack and loosen the U bolts on the passenger side 2 Remove ine wheels anc remove the U bolts on the driver side 3 Remove the retaining clips on the wheel 6 Install the add a leaf following the en studs closed instructions 7 If you have Pro Comp Traction bars in 4 Remove the shocks on both sides of the a oe stall the axle mount at this time vehicle It may be necessary that you slightly DO NOT allow the axle to hang by any hoses or cables ADD A LEAF 13127 1 Illustration A 13 90087 BESS KNX DRIVERS SIDE Arrow to front Axle to front 13 51084 51084MX REVISED 12 21 05 8 Remove the factory pinion wedge plates hands paced onthe racor Dockor Spings 14 Install existing bump stop to the provided bump stop drop Install bump stop drop 90 NOTE On some 4 door models the 2444 to the truck with the supplied 3 8 hard factory pinion wedge may need to be ro tated 180 degrees in order for the drive NER shaft yoke to properly fit into the trans 15 Install your new Pro Comp shocks PN mission 327503 or MX 6098 shaft up and torque this hardware to 60 ft Ibs 9 Install the lift block on the2. guide for hardware without a called out torque specihcation in the instructon manual Bolt Torque and ID Decimal System All Torques in Ft Lbs Maximums 5 Grade 5 Graded of Make 27 12 13 1 75 HHCS SA Grade Bolt Strength D Momunal Diameter Inches T Thread Count Threads per Inch L Length Inches X Description Hex Head Cap Screw jini li li D At Afi 12 1 25 50 ANAA LR F Propety Class Bolt Strength D Nonund Diameter dbmeters T Thread Pitch Thread Width mm L Length Millimeters X Description Hex Head Cap Screw 15 Notice to Owner operator Dealer and Installer Vehicles that have been enhanced for off road performance often have unique handling characteristics due to the higher center of gravity and larger tires This vehicle may handle react and stop differently than many passenger cars or unmodified vehicles both on and off road You must drive your vehicle safely Extreme care should always be taken to prevent vehicle rollover or loss of control which can result in serious injury or even death Always avoid sudden sharp turns or abrupt maneuvers and allow more time and distance for braking Pro Comp reminds you to fasten your seat belts at all times and reduce speed We will gladly answer any questions concerning the design function maintenance and correct use of our products Please make su
3. 31 Torque existing upper sub frame nuts and bolts to 100 ft Ibs Starting with the front then the rear 32 Using a floor jack support the front lower control arm near the spring seat Install the coil spring insulators previously re moved from the old spring in the same location on to the new coil PN 14514 NOTE See critical instructions 33 Refer to the measurements taken at step 1 If you trucks height is off more than 3 8 1 2 install the coil spacer 90 1887 on top of the coil at the time of install to the side that is shorter 34 Position the coil spring on the lower con trol arm spring seat Match up with the mark from the original coils location 35 While the lower control arm is supported with the floor jack compress the coil with the spring compressor Place the top of the spring in the upper frame spring pocket 36 Install new front knuckle 90 4078 DRIV ERS and 90 4079 PASSENGER to lower control arm ball joint Fasten with the OEM nuts NOTE Make sure the brake line is behind the knuckle 37 Raise the lower control arm using the floor jack Attach the front knuckle to the upper ball joint Fasten with the OEM nuts 38 Remove the coil spring compressor tool 39 Torque the lower ball joint nut to 94 ft 51084 51084MX REVISED 12 21 05 Ibs 40 Torque the upper ball joint nut to 74 ft Ibs 41 Repeat on other side of the vehicle amp 42 f applicable re attach ABS sensors to th
4. axle pad and 16 Reinstall the wheels and tires and lower use your floor jack to raise the axle to the the vehicle to the ground spring Apply a slight amount of pressure with your floor jack against the spring pack and engage the centering stud into the locat 17 Recheck the wheel lug torque on all four wheels at this time ing hole at the top of the lift block Secure 18 Recheck all hardware for proper installa the assembly with the U bolts supplied in tion and torque at this time hardware pack and new high nuts and wash 19 On completion of the installation have ers from hardware pack Do not tighten the the suspension and headlights re aligned amp U bolts at this time See Illustration A NOTE make sure the block sits NOTE You may trim the plastic flush on the axle perch fender trim 10 Repeat the installation on the other side as needed of the vehicle amp 11 When the installation of the re maining side is complete torque the U bolts to 115 ft Ibs 12 On the drivers side remove the ex isting brake line bracket 13 Install the brake line drop spacers using the enclosed 1 4 hardware from hardware pack 90 6291 and the spac ers 90 2249 See illustration B NOTE Make sure the hard lines do not rub against the frame If they do you can carefully bend them out of the way with your 90 2249 Illustration Rear Drivers 14 51084 51084MX REVISED 12 21 05 Use this only as
5. ball joint breaks loose from the upper part of the knuckle main under the front control arm spring seat during disassembly to retain the spring and control arm position or per sonal injury may result 17 Slowly release the floor jack until all of the pressure has been released Remove the front coil spring and the compressor 13 Mark the end of the springs location in the 19 remove bucket for new coil installation OE Bolt 19 Remove the three bolts from the backside attaching the bearing stud assembly and the dust shield from the OE knuckle Set these parts aside for installation on new knuckle 20 Install the three OE bolts to the backside of the new knuckle attaching the bearing stud assembly and the dust shield Make sure drivers hardware goes to the new drivers knuckle and the passengers goes to the passengers knuckle Torque this hardware to factory specs 2 Remove the nuts washers and bolts fas tening the lower control arm to the frame Set these parts aside for future use Bolt Rear cross 22 Remove the lower control arms member 90 3309 23 Remove the factory bump stops 24 Repeat on other side of the vehicle amp 25 Install the front cross member 90 3306 into the existing front lower control arm mounting position using the OEM hard ware previously removed Make sure that the bolt heads are facing towards the front Front cross of the vehicle Do not fast
6. tie rod ends the bottom Using the tie rod end puller remove the 5 Remove the sway bar end link assem tie rod end from the OE knuckle Save blies from both sides of the vehicle the nuts for reuse Be careful that you do not damage the dust guard or the tie rod ends SEE ILLUSTRATION 1 10 Remove the two bolts to the disk brake caliper lift the calipers off the rotor Use wire tie or tie wraps to secure them clear 6 Mark the sway bars orientation Remove the mounts and the sway bar 7 If your vehicle is equipped with ABS brakes disconnect the wiring Move it of the work area NOTE Be careful that you do not damage the brake lines Never hang the calipers from the brake lines 11 Remove the disc brake rotor retaining clips Then remove the rotor and set it clear of the work area 12 Using a floor jack support the front lower control arm near the spring seat Raise the jack until it just supports the lower control arm CAUTION The floor jack must re 51084 51084MX REVISED 12 21 05 14 Install coil spring compressor tool and compress the coil spring 15 locate the lower ball joint remove the nut from the ball joint Using the ball joint separator tool apply pressure to the tool until the ball joint breaks loose from the lower part of the front knuckle 16 Locate the upper ball joint remove the nut from the ball joint Using the ball joint separator tool apply pressure to the tool until the
7. 2360 Boswell Road Chula Vista CA 91914 Phone 619 216 1444 Fax 619 216 1474 E Mail _ tech explorerprocomp com PRO COMP SUSPENSION Suspension Systems that Work Part 91084 S1084MX 1999 2005 Chevrolet Silverado 2WD W ONE PIECE REAR DRIVE SHAFT amp 2005 amp 2006 C1500 w COIL SPRING FRONT END 1 Inch Lift Kit IMPORTANT This kit will not fit 2005 amp 2006 C1500 with torsion bar front end This document contains very important information that includes warranty information and instructions for resolving problems you may encounter Please keep it in the vehicle as a permanent record Part 90 3306 90 3309 90 1705 90 1104 90 4118 90 4119 90 6411 97 1078 90 6227 70 0625001800 70 0625501800 72 062100816 73 06200034 90 6262 70 0621501500 70 062100512 73 06200034 72 056100512 73 05000034 90 6234 70 0501251800 70 0504001800 72 050100816 73 05000032 90 2126 90 1582 90 6263 15 11148 90 2109 90 6291 70 0252501800 72 025100816 73 02500838 70 0371501800 72 037100816 73 03700034 Descripti Box 1 of 5 PN 51084 1 51084MX 1 on FRONT CROSS MEMBER REAR CROSS MEMBER COMPRESSION STRUT MOUNTS COMPRESSION STRUT MOUNTS Box 2 of 5 PN 51084 2 51084MX 2 FRONT KNUCKLE DRIVERS FRONT KNUCKLE PASSENGER HARDWARE PACK sTEERING STOPS STEERING STOP PLATES Box 3 of 5 PN 51084 3 51084MX 3 HARDWARE PACK cROSSMEMBERS 5 8 X 5 GR 8 HEXBOLT 5 8 X 5 1 2 GR 8 H
8. EXBOLT 5 8 USS GR 8 STOVER NUT 5 8 SAE GR 8 WASHER HARDWARE PACK cCROSSMEMBER BRACES 5 8 X1 1 2 GR 5 HEXBOLT 5 8 USS GR 5 NYLOCK NUT 5 8 SAE GR 8 WASHER 9 16 USS GR 5 NYLOCK NUT 9 16 SAE GR 8 WASHER HARDWARE PACK COMPRESSION STRUTS 1 2 1 1 4 GR 8 HEX BOLT 1 2 X 4 GR 8 HEX BOLT 1 2 GR 8 STOVER NUT 1 2 USS GRADE 8 FLAT WASHER COMP NUT P HARDWARE PACK COMPRESSION STRUTS COMPRESSION STRUT BUSHING SLEEVE COMPRESSION STRUT 2 75 BRAKE LINE DROP KIT REAR X 2 1 2 GR 8 HEXBOLT USS STOVER NUTS 1 4 1 4 1 4 3 8 3 8 3 8 RESSION STRUTS LATE 1 2 PLATED WASHER X 1 1 2 GR 8 HEXBOLT USS STOVER NUT SAE GR 8 FLAT WASHER Qty MONA A ANa Nanna gt BRMODNANN Illus aah AA an WWW 11 51084 51084MX REVISED 12 21 05 Page 6A 6B CO CO Part 90 2144 95 300 13 90087 90 6292 15 11031 72 037100512 73 03700530 90 2249 20 65302 13 10423 13 3033 90 2374 90 2376 90 1887 90 6325 15 11160 10024 90 2419 90 6329 13127 1 MX 6028 MX 6098 322515 327503 Description BUMPSTOP EXTENSION 3 BLOCK 2 1 2 X 5 W 9 16 PIN 9 16 X 2 625 X 12 5 SQUARE U BOLTS HARDWARE PACK BUMPSTOP CONE BUMPSTOP 2 1 4 LONG 3 8 GR 5 NYLOCK NUT 3 8 G
9. R 5 FLAT WASHER SPACER REAR BRAKE LINE DROP HARDWARE PACK u BoLT 9 16 NUTS SAE GR 8 9 16 HARDENED FLAT WASHERS CROSSMEMBER BRACES DRIVER CROSSMEMBER BRACES PASSENGER COIL SPACER HARDWARE PACK sway BAR KIT BUSHING WASHER SPACER HARDWARE PACK sway BAR KIT Box 4 of 5 PN 51084 4 51084MX 4 1 1 2 ADD A LEAF Box 5 of 5 PN 51084MX 5 MX6 FRONT SHOCKS MX6 REAR SHOCKS OR Box 5 of 5 PN 51084 5 ES3000 FRONT SHOCKS ES3000 REAR SHOCKS Qty ANN gt 51084 51084MX REVISED 12 21 05 Illus DAAA gt gt gt Optional Equipment Available from your Pro Comp Distributor PRO COMP COIL SPRINGS PN 14514 ARE REQUIRED FOR THIS INSTALLATION TRACTION BARS 71311 SKID PLATE 51103 DRIVE SHAFT ALIGNMENT KIT 51255 Also check out our outstanding selection of Pro Comp tires to compliment your new installation 51084 51084MX REVISED 12 21 05 SPECIAL EQUIPTMENT Please refer to your service manual for more information These tool may be purchased at your local GM dealer 1 A special removal tool is required for safe removal of the tie rods Tie rod puller J6627 A 2 A special removal tool is required for safe removal of the ball joints Ball joint separator tool J23742 3 A special removal tool is required for safe removal of the coil springs Coil spring removal and installation tool J23028 A You may be able to rent
10. any of these tools at your local parts store Please Note Front end and head light realignment is necessary Speedometer and ABS recalibration will be necessary if larger tires 10 more than stock diameter are installed Due to differences in manufacturing dimensions and inflated measurements tire and wheel combinations should be test fit prior to installation Tire and wheel choice is crucial in assuring proper fit performance and the safety of your Pro Comp equipped vehicle For this application we recommend a wheel not to exceed 8 in width with a minimum backspacing of 4 must be used Additionally a quality tire of radial design not exceeding 35 tall X 12 5 wide is also recommended Please note that the use of a 35 X 12 5 tire may require fender modification Violation of these recommendations will not be endorsed as acceptable by Pro Comp Suspen sion and will void any and all warranties either written or implied 2005 trucks require a 17 wheels to clear the calipers CRITICAL INSTRUCTION PRO COMP COIL SPRINGS PN 14514 ARE REQUIRED FOR THIS INSTALLATION Open the box with the new coil springs Due to manufacturing variances the end of the coils may or may not have the same end wrap When installing them the end wrap of the coil will effect how the coil sits in the a arm To check place the coil on the floor and butt it against the wall turn it around and do the same to the other side with the coil end in
11. ble and sold separately by Pro Comp Contact Pro Comp for specific service charges Pro Comp accepts no responsibility for any altered product improper installation lack of or improper maintenance or improper use of our products E Mail tech explorerprocomp com PLACE Website www explorerprocomp com Fax 619 216 1474 WARRANTY REGISTRATION Ph 619 216 1444
12. e factory harness NOTE Make sure the ABS wire runs on the a arm so the tire will not hit it 43 Install brake rotor onto the front spindle 44 Attach the brake caliper assembly to the new front spindle Torque the bolts to 125 169 ft lbs SEE ILLUSTRATION 3 45 Install the new Pro Comp shock absorber PN 322515 or MX 6028 through the front coil 46 Reinstall the tie rod ends and fasten with the OEM nuts 47 nstall and torque the tie rod ends to 40 ft Ibs 48 Repeat on other side of the vehicle 49 Flip the sway bar over and install the sway bar and mounts back on the vehi cle 50 Install sway bar to the lower control arm using the sway bar hardware from pack 90 6325 Loosen the factory brake line in the fac tory bracket by prying it open Attach the existing brake line hose clamp to knuckle Make sure that the brake line does not interfere with any of the moving suspen sion components amp 5 52 Make sure you can cycle the suspension from lock to lock 53 Cycle the suspension through full travel cycle and check for adequate clearance between sway bar end links shocks bump stops and brake line hoses 54 Raise the lower controls arm to the new ride height This is the measurement from step one plus 5 5 6 0 inches Torque the 5 8 hardware lower control arms to 100 ft Ibs amp 55 Install the bushings and sleeves into both ends of the compression struts PN 90 2126 56 W
13. en at this time member 90 3306 26 Place the rear cross member 90 3309 51084 51084MX REVISED 12 21 05 90 2376 A PASS 5 8 X1 1 2 90 2374 90 3306 DRIVERS U j into the existing lower control arm mount 11031 to the new rear cross member ing position using the OEM hardware pre viously removed Make sure that the bolt heads are facing to the rear of the vehicle Do not fasten at this time SEE ILLUS 29 Install the lower control arms into the new front and rear cross member mounting ar eas Place strut mount bracket PN 90 TRATION 2 1705 on the bolt then install the bolt to the NOTE Some rear of the lower trucks have factory Hlustration 4 mounting tabs lo 5 8 x 5 cu drivers cated underneath the rear cross ber These will need to be removed if the cross member will not fit properly iW 27 nstall cross member braces 90 2374 DRIVERS and 90 2376 PASS with the supplied hardware from pack 90 6262 28 With the supplied 3 8 hardware from 90 3306 pack 999292 anach 90 3309 the bump stops 15 control arm Use 5 8 X 5 5 hardware provided from pack 90 6227 Make sure that the rear bolts heads are facing to the rear of the vehicle Make sure that the front bolts heads are facing to the front of the vehicle Do not torque at this time SEE ILLUSTRATION 2 30 Repeat on other side of the vehicle
14. g _ be FRONTLOWER nuts to 90 ft bs 63 Torque sway bar ends to 13 ft Ibs A N NOTE Recommended for 2006 At Zw ride height if the steering knuckle con tacts the sway bar end links you can weld the included 97 1078 to the front steering stops on the lower con trol arms SEE ILLUSTRATION 6A amp 6B Also reinstall the OE sway bar end links in place of the supplied end link kit 90 6325 64 both sides the vehicle at ride height and full droop check the routing of the brake lines and the ABS wire harnesses There must be no pinching rubbing or Illustration 6B stretching of either component Use zip Steering Stop ties to secure these items to the steering components Cycle the steering from lock to lock while observing the reac tion of these components Reposition po them if needed 65 Recheck for proper installation and torque all newly installed hardware 66 After 100 miles recheck for proper torque on all newly installed hardware 67 Have your headlights adjusted 68 Recheck all hardware for tightness after off road ATTENTION If there is drive line vibration after you install the lift kit Install the 90 6326 HARDWARE PACK Drive shaft shim kit and supplied hard ware to drop the drive shaft carrier bear ing Any combination of these shims can be used to eliminate the vibration 11 12 51084 51084MX REVISED 12 21 05
15. he installation of Pro Comp product A consumer who makes the decision to modify his vehicle with aftermarket components of any kind will assume all risk and responsibility for potential damages incurred as a result of their chosen modifications Warranty cover age does not include consumer opinions regarding ride comfort fitment and design Warranty claims can be made directly with Pro Comp or at any factory authorized Pro Comp dealer IMPORTANT To validate the warranty on this purchase please be sure to mail in the warranty card Claims not covered under warranty Parts subject to normal wear this includes bushings bump stops ball joints tie rod ends and heim joints e Discontinued products at Pro Comp s discretion Bent or dented product Finish after 90 days Leaf or coil springs used without proper bump stops Light bulbs Products with evident damage caused by abrasion or contact with other items Damage caused as a result of not following recommendations or requirements called out in the installation manuals Products used in applications other than listed in Pro Comp s catalog Components or accessories used in conjunction with other manufacturer s systems Tire amp Wheel Warranty as per Pro Competition Tire Company policy Warranty claims without Proof of Purchase Pro Comp Pro Runner coil over shocks are considered a serviceable shock with a one year warranty against leakage only Rebuild service and replacement parts will be availa
16. ing power tools or working under the vehicle Use caution when cutting is required under the vehicle The factory undercoating is flammable Take appropriate precautions Have a fire extinguisher close at hand Foot pound torque readings are listed on the Torque Specifications chart at the end of the instructions These are to be used unless specifically directed otherwise Ap ply thread lock retaining compound where specified Please note that while every effort is made to ensure that the installation of your Pro Comp lift kit is a positive experience variations in construction and assembly in the vehicle manufacturing process will virtually ensure that some parts may seem difficult to install Additionally the current trend in manufac turing of vehicles results in a frame that is highly flexible and may shift slightly on disassembly prior to installation The use of pry bars and tapered punches for alignment is considered normal and usually does not indicate a faulty product However if you are uncertain about some aspect of the instal lation process please feel free to call our tech support department at the number listed on the cover page We do not recommend that you modify the Pro Comp parts in any way as this will void any warranty expressed or im plied by the Pro Comp Suspension company NOTE 2004 Chevrolet standard cab with short bed and one piece rear drive shaft may require shorter rear shocks to limit the rear end droop This wil
17. ith the angled end towards the front of the truck attach the compression struts to the strut mount brackets located on the rear cross member using the supplied 1 2 hardware provided in pack 90 6234 Do not tighten at this time SEE ILLUS 51084 51084MX REVISED 12 21 05 ward until the bracket contacts the bot tom of the transmission cross member Using the bracket as a guide mark and center punch the mounting hole loca tions NOTE Struts may angle in towards the center of the of the cross member or out towards the frame Choose the best place to mount depending on your engine and transmission combi nation 58 Drill a 1 2 diameter hole at each of the marked locations TRATION 5 59 Install the bracket 90 1104 with the nut 57 Attach the strut mount PN 90 1104 to the other end of the compression strut Ro tate the compression strut assembly up plate 90 1582 and the 1 2 X 1 1 4 hardware provided Reinstall the com pression struts using the supplied 1 2 X illustration 5 Passenger side Typical location on 90 1104 90 1705 COMPRESSION STRUT HARDWARE 1 1 2 X 4 COMPRESSION STRUT 90 2126 10 51084 51084MX REVISED 12 21 05 4 hardware Illustration 6A Steering Stop 60 Repeat on the other side 61 Torque the 1 2 hardware to 65 ft Ibs amp 62 Install your wheels and tires and lower the vehicle to the ground Tighten the lu
18. l prevent the driveshaft from hitting the crossmember brace MX6098 will solve this issue 51084 51084MX REVISED Front Installation 12 21 05 1 Prior to installing this kit with the vehicle on the ground measure the height of your vehicle This measurement can be recorded from the center of the wheel straight up to the top of the inner fender lip Record the measurements below LF RF LR RR 2 Ensure that your work space is of ade quate size and the work surface is level Place the vehicle in neutral Place your floor jack under the front cross member and raise vehicle Place jack stands un der the frame rails behind the front wheel wells and lower the frame onto the stands Remove the jack and place the vehicle back in gear set the emergency brake and place blocks both in front of and behind the rear wheels Remove the wheels 3 Remove any skid plates or debris shields from the bottom of the vehicle NOTE The factory compression struts can be left on the vehicle if de sired 4 Tie rod end puller Pitman arm puller Work on one side of the vehicle at a time 4 Remove the shock absorbers Using a clear of the work area where it will not get damaged wrench hold the shock absorber stem while backing the nut off the stem Re 8 Remove the brake line clamp from the move the bottom bolts from the lower frame and control arm control arm and remove the shock from 9 Remove the nuts from the
19. re your Dealer Installer explains and delivers all warning notices warranty forms and instruction sheets included with Pro Comp product Application listings in this catalog have been carefully fit checked for each model and year denoted However Pro Comp reserves the right to update as necessary without notice and will not be held responsible for misprints changes or variations made by vehicle manufacturers Please call when in question regarding new model year vehicles not listed by specific body or chassis styles or vehicles not originally distributed in the USA Please note that certain mechanical aspects of any suspension lift product may accelerate ordinary wear of original equipment components Further installation of certain Pro Comp products may void the vehicle s factory warranty as it pertains to certain covered parts it is the consumer s responsibility to check with their local dealer for warranty coverage before installation of the lift Warranty and Return policy Pro Comp warranties its full line of products to be free from defects in workmanship and materials Pro Comp s obli gation under this warranty is limited to repair or replacement at Pro Comp s option of the defective product Any and all costs of removal installation freight or incidental or consequential damages are expressly excluded from this warranty Pro Comp is not responsible for damages and or warranty of other vehicle parts related or non related to t
20. the same location If one side sits flatter against the wall mark it this side should go to the top of the spring bucket Failure to do this will cause ex cessive bow and difficulty with the installation of the shock 4 51084 51084MX REVISED 12 21 05 Introduction This installation requires a professional mechanic We recommend that you have access to a GM service manual for your vehicle to assist in the disassembly and reassembly of your vehicle It contains a wealth of de tailed information Prior to installation carefully inspect the vehicle s steering and driveline systems paying close attention to the tie rod ends ball joints wheel bearing preload pitman and idler arm Additionally check steering to frame and suspension to frame at taching points for stress cracks The overall vehicle must be in excellent working condition Repair or replace all worn or damaged parts Read the instructions carefully and study the illustrations before attempting installa tion You may save yourself a lot of extra work Check the parts and hardware against the parts list to assure that your kit is com plete Separating parts according to the areas where they will be used and placing the hardware with the brackets before you begin will save installation time Check the special equipment list and ensure the availability of these tools Secure and properly block vehicle prior to beginning installation ALWAYS wear safety glasses when us
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