UNIVERSAL JOINTS AND PROPELLER SHAFT
Contents
1. a Removal Remove nuts lockwashers and bolts holding universal joint and propeller shaft to differ ential and transmission companion flanges and center bearing to frame crossmember Remove propeller shaft assembly b Disassembly Place assembly in bench vise and remove splined yoke cross bushing retainers Press out bushings and remove cross from yoke Remove bearing blocks dust seals and dust seal retain ers Remove retainers from cross roller bear ings Press out bearings and cross Remove dust seals and retainers from cross The cross roller bearing block and its component parts also form an assembly These parts are not serviced separately After disassembly clean and inspect parts and replace those worn or RETAINER SLINGER BOLT SEAL RETAINER damaged as necessary c Assembly Lubricate all parts before assembling If splined joint at rear of front propeller shaft has been disassembled fill cavity with one ounce by weight of MS 1124 The center bearing is a sealed bearing and does not require lubrica tion Install dust shields and retainers on cross Press cross roller bearing and bushing assem bly into yoke with cross in proper location CAUTION Make certain that all of roller bear ngs are cor rectly placed in roller bushing Also be sure balance arrows are in alignment Fig 7 d Installation Place propeller shaft in its correct position un der car Make certain that slip spline end2. level UNIVERSAL JOINTS amp PROPELLER SHAFT 11 protractor as shown in Figures 19 and 20 Measure angles of front propeller shaft middle propeller shaft and rear axle pinion drive shaft flange The rear axle drive pinion shaft flange angle should be obtained by removal of rear end of rear propeller shaft and measuring angle of front face of companion flange as shown in Figure 21 SERVICE DIAGNOSIS 8 PROPELLER SHAFT VIBRATES a If propeller shaft drum and flange are not shielded while car is being undercoated the undercoating material may accumulate on underside of propeller shaft and cause vibra tion To remedy such a condition inspect shaft and remove undercoating material if present with solvent b Check transmission flange nuts and rear axle differential flange nuts for looseness Tighten to Data and Specifications c Check alignment of balance arrows on both shaft and front universal joint These ar rows must be exactly in line If not reposition splines so that arrows are properly aligned 9 UNIVERSAL JOINTS NOISY a Check universal joint for possible dam age and tighten propeller shaft flange bolts to Data and Specifications b Disassemble universal joints and inspect all parts for wear or damage Replace parts as required pack bearings with universal joint grease and reassemble c Inspect universal joint bearings for wear and replace as necessary d Check for flange runout In
3. CHRYSLER SERVICE MANUAL UNIVERSAL JOINTS amp PROPELLER SHAFT 1 Section XII UNIVERSAL JOINTS AND PROPELLER SHAFT CONTENTS Page Servicing Cross Type Universa vuus 2 1 ee teenies 4 Servicing Ball and Trunnion Type Universal Joints 045 4 Servicing Cross and Yoke Type Propeller Shaft 00 6 Servicing Propeller Shaft Center Bearing 0 cece eee e eee 7 Rear Axle Control Struts s 05 6c tek esien recede Seether and vedeme as 7 Checking Propeller Shaft Angles Siena ee EEA EE 11 Service Diagnosis oscar rinaire E a a a E EOT E 11 DATA AND SPECIFICATIONS Town amp Country Models LC 1 2 LC 3 LC 1 LC 3 LY 1 Propeller Shaft Number Used rere Tor 2 Diameter With TorqueF lite Transmission 2 75 in Diameter with Air Conditioning And TorqueFlite Transmission 2 75 in Length Centerline to Centerline of U Joints With TorqueFlite Transmission 63 64 2 UNIVERSAL JOINTS amp PROPELLER SHAFT CHRYSLER SERVICE MANUAL ROLLER AND BUSHING ASSEMBLY ROLLER AND BUSHING ASSEMBLY PROPELLER SHAFT RETAINER BUSHING RETAINER RETAINER CLAMP LOCKWASHER ROLLER DUST SEAL BOLT DUST SEAL RETAINER CROSS ASSEMBLY ROLLER AND BUSHING ASSEMBLY BUSHING RETAINER ROLLER DUST SEAL ROLLER AND BUSHING ASSEMBLY DUST SEAL RETAINER 55x767 A Fig 1 Rear Universal Joint Cross Type Disassembl
4. ed View CENTERING BUTTON EY BUTTON sno 6 BALL AND ROLLERS GREASE COVER GASKET PROPELLER SHAFT SHAFT BOLT neil SPRING CENTERING BUTTON 54x49 Fig 2 Front Universal Joint Ball and Trunnion Type Disassembled View CHRYSLER SERVICE MANUAL UNIVERSAL JOINTS amp PROPELLER SHAFT 3 DATA AND SPECIFICATIONS Cont d Models LC 1 2 Flange to Flange Length With TorqueFlite Transmission 61 10 Lubrication 0 c0c eee eee Bushing Bearing Type be Every 20 000 miles Town amp Country LC 3 LC 1 LC 3 LY 1 61 10 61 10 61 10 64 14 PRE PACK Front Ball and Trunnion Cross Type Rear Cross Type Only ANTI FRICTION Section XII UNIVERSAL JOINTS AND PROPELLER SHAFT UNIVERSAL JOINTS Two types of Universal Joints are used on 1958 Chrysler Models and are as follows The Cross Type as shown in Figure 1 and Ball and Trunnion Type as shown in Figure 2 The ball head of the Ball and Trunnion Type is an integral part of the tubular propeller shaft and is covered by the joint body The pin with balls needle bearings thrust wash ers centering button and button spring at each end extends through the propeller shaft ball head and rides in ball channels in the body of the joint assembly This balanced installation is designed to absorb thrust and torque of the drive line This type of joint is used in Chrysler Models LC 1 2 and 3 at f
5. f car on axle housing the angle of the universal joints will be influenced If measured angle is not 1 to 3 degrees cor rection should be made by shimming axle with 2 taper shim After rear universal joint an gle has been adjusted as near to two degrees as possible measure middle universal joint working angle This working angle should be 114 degrees more or less with the apex up ward for rear universal joint angle of two degrees at zero passenger load For other angles see table below TABLE Rear Joint Middle Joint 1 11 1 114 2 114 21 114 3 1 383i 1 The middle universal joint angle is adjusted by adding or removing shims between center SUBTRACT SHIMS 58x706 Fig 17 Bubble Location Rear of Center 1O UNIVERSAL JOINTS amp PROPELLER SHAFT CHRYSLER SERVICE MANUAL MIDDLE JOINT FRONT JOINT CENTER PERE REAR JOINT CENTER ee WORKING ANGLE 2 1 PINION SHAFT HORIZONTAL ra CENTER FLOOR LINE FRONT SHAFT REAR SHAFT fora Fig 18 Determining Working Angles Front and Rear Propeller Shaft bearing insulator and crossmember Adding 14 inch shim will increase middle universal joint angle about 14 degrees likewise removing 1 inch shim will reduce angle about 14 degree In measuring the angles of front and rear propeller shafts and the pinion shaft a spirit level protractor must be used to determine amount the shafts are below horizontal or the end of the shaft is po
6. inting down Determine working angles as shown in Figure 18 Since adjacent shafts are pointing in dif ferent directions up or down when viewed in same direction from front to rear of car the working angles are obtained by adding the angles below horizontal Therefore the mid dle joint working angle as shown in Figure 18 is 2 and the rear joint working angle is 3 If the adjacent shafts were pointing in the same direction then the angles below horizontal ae a 56x255 Fig 19 Checking Front Propeller Shaft Angles Fig 20 Checking Rear Propeller Shaft Angles would be subtracted to obtain the joint work ing angle If large number of shims must be added or removed at center bearing rear universal joint angle should be rechecked to be assured that it has not been appreciably altered from two degrees When these adjustments have been made the least amount of propeller shaft shudder should occur at a loading of two passengers If after road testing it is desirable to obtain the least amount of propeller shaft shudder at large pas 6x257 Fig 21 Checking Companion Flange Angle CHRYSLER SERVICE MANUAL senger loading center bearing must be raised slightly by means of shimming Lowering cen ter bearing will move point of least shudder to a lower passenger loading 7 CHECKING PROPELLER SHAFT ANGLES Locate car over pit with wheels supporting car Check universal joint angles with a spirit
7. joint body metal cover and gasket by bending tabs of cov er away from body remove cover and gasket Slide body down on propeller shaft exposing two centering buttons Remove centering but tons and spring washers from ends of trunnion pins Slide two balls rollers and thrust wash ers off trunnion pin Wash all parts with sol vent and blow dry with compressed air In spect and replace worn parts NOTE Reconditioning of ball and trunnion type universal joints will only be necessary when excessive backlash exists between balls and trunnion In some instances it will be found that universal joint body has worn and it will be necessary to replace all parts including body pin thrust washers and centering buttons Worn rollers should also be replaced 3 UNIVERSAL JOINT MAINTENANCE BALL AND TRUNNION The universal joints propeller shaft and hand brake drum are accurately balanced during process of manufacture Care should be exer cised to maintain this condition of balance by close adherence to the following Do not use more than 214 ounces of lubricant in a univer sal joint ball and trunnion type of the LC 3 and 2 ounces in the LC 1 and 2 at any time Keep propeller shaft hand brake drum flanges etc free from undercoating dirt and ice CAUTION When installing trunnion pin in propeller shaft care should be taken to see that trunnion pin is centered in shaft Each end of pin should protrude the same distance with
8. many in stances it is possible to correct a flange run out condition by repositioning universal joint 180 degrees with companion flange Reposition only one universal joint at a time and road test car after each repositioning operation e Check splines If excessively loose inspect splines on shaft or in flange for wear or dam age Replace shaft or flange as necessary to correct condition
9. nd of dust cover protruding through back end of body With other hand pump body back and forth as shown in Figure 6 until entire dust cover has passed through body During operation cone may have reversed itself inside dust cover Pull it out to its normal position Insert 214 ounces of heavy fiber universal joint grease in joint of LC 3 2 ounces in the 55x766 Fig 4 External Type Dust Cover UNIVERSAL JOINTS amp PROPELLER SHAFT s UNIVERSAL JOINT CENTERING PIN PROPELLER SHAFT UNIVERSAL JOINT DUST COVER OR l BOOT 49x910 Fig 5 Sliding Cover Over Ball Head and Fin UNIVERSAL JOINT BODY LC 1 and 2 and assemble balls to pin Install cover Install shaft using new lockwashers Be sure to double check flange bolts for tightness to insure against grease leakage Recheck after 1 000 miles of operation CAUTION Never attempt to use a needle like arrangement for forcing lubricant into boot or dust cover on universal joints Excessive grease can be forced into boot and cause shaft to be thrown out of balance burst boot or lubricant can be lost through injection hole during high speed operation The joints must be disassembled and packed with universal joint grease Fig 6 Working Dust Cover Through Body 6 UNIVERSAL JOINTS amp PROPELLER SHAFT CHRYSLER SERVICE MANUAL CROSS AND YOKE TYPE PROPELLER SHAFT 5 SERVICING CROSS AND YOKE TYPE PROPELLER SHAFT Fig 7 Imperial Models
10. of shaft is located toward front of car Insert at taching screws and tighten securely BUSHING SHAFT S BUSHING SEAL HOUSING N 4 RETAINER a NN a RETAINER B Ss NE VALVE T AE f A RETAINER ae SEAL e WASHER A WASHER NUT SPACER Bin Fig 7 Propeller Shaft and Center Bearing Assembly Disassembled View CHRYSLER SERVICE MANUAL 6 SERVICING PROPELLER SHAFT CENTER BEARING Figure 7 The center bearing and housing must be re moved as a unit together with front propeller shaft for servicing CAUTION Do not extend two piece center bearing pro UNIVERSAL JOINTS amp PROPELLER SHAFT 7 peller shaft to its full length The seal may be damaged by the splines on universal joint yoke With yoke all the way into front propeller shaft bend up tang on dust seal cover Remove cover seal lock and dust slinger and remove center bearing assembly Inspect bearing bracket seal Replace necessary parts and re assemble REAR AXLE CONTROL STRUT The 1958 Imperials are designed with two propeller shafts and a propeller shaft center bearing as shown in Fig 8 Conditions may arise under certain passenger loads which may create a propeller shaft shudder or vibration at speeds of 15 to 20 miles per hour In order to control this shudder or vibration a rear axle control strut as shown in Figure 9 has been incorporated in rear axle design for purpose of controlling rise of nose of
11. rear axle carrier under varying load conditions Corrections of propeller shaft shudder should be made as follows Before diagnosing a shud der condition make sure engine has been tuned and is operating smoothly with no hesitation or stumble on accelerator NOTE A rough engine can aggravate or pro duce a shudder FRONT PROPELLER SHAFT ASSEMBLY SEAL NUT LOCK CENTER BEARING OIL SUNGER d 7 REAR PROPELLER SHAFT ASSEMBLY 56x242 Fig 8 Center Bearing Installed With fuel tank approximately 3 4 full de termine under what speed and passenger load a shudder is present and if shudder is light moderate or heavy Check the indexing of uni versal joints and propeller shaft assembly as shown in Figure 7 The letter O on front FRAME BRACKET 57x311 j HOUSING BRACKET Fig 9 Rear Axle Control Strut BUMPER PLATE ne 8x299 Fig 10 Differential Carrier Bumper Plate 8 UNIVERSAL JOINTS amp PROPELLER SHAFT Fig 11 Indexing Gauge Installed face of spline should be lined up with key slot at rear of front shaft Place car on platform with weight of vehicle on rear wheels With fuel tank between 34 and full and weight of vehicle on wheels remove differential carrier rebound bumper plate Fig ure 10 Working from the left side of car place and index the aligning gauge Tool J 6845 on the machine pads of the differential carrier as shown in Figure 11 Adjust b
12. ront universal joint The Cross Type universal joint is used at rear joint of all models and front and center bearing joints of Imperial Models which are equipped with center bearing and two propel ler shafts No adjustments are provided to compensate for wear in universal joint assembly Parts that show excessive wear must be replaced CAUTION When disassembling universal joints keep parts identified as to original position Failure to as semble parts in their original positions may cause an unbalanced condition in the propeller shaft Retorque mounting nuts after the initial 1 000 miles of operation 4 UNIVERSAL JOINTS amp PROPELLER SHAFT CHRYSLER SERVICE MANUAL CROSS TYPE 1 SERVICING CROSS TYPE UNIVERSAL JOINTS Fig 1 Remove propeller shaft from the vehicle Re move two bushing retainers holding bushings in shaft yoke and remove bushings Tilt cross so that it may be removed from propeller shaft yoke Straighten out end of retainer lock and remove two roller and block assemblies Re move dust seals and retainers Inspect parts and replace parts that show wear Lubricate roller and bushings with universal joint grease extreme pressure and assemble joint in re verse order of disassembly BALL AND TRUNNION TYPE 2 SERVICING BALL AND TRUNNION TYPE UNIVERSAL JOINT To disassemble universal joint for repair or inspection of all component parts refer to Fig 2 and proceed as follows Remove
13. strut bracket after installing tapered shim between rear axle housing pads and rear spring To check the center propeller shaft angle refer to Figure 13 and proceed as follows Index the aligning gauge squarely under the rear propeller shaft and reset level to zero Fig 14 Install front propeller shaft adapter on front shaft with pins of adapter pointing towards the left of car Fig 14 Locate gauge to adapter on front shaft making sure that locat ing pins are placed squarely on adapter and gauge Fig 15 Note the location of leading edge of bubble in level For each graduation the leading edge of bubble is forward of the center Figure 16 add a shim beneath the center bearing support bracket For each graduation the trailing edge of the bubble is to the rear of center in level Fig 17 subtract or remove one shim from beneath center bearing support bracket NOTE Always recheck center joint working angle after shimming center joint working angle To check propeller shaft alignment with protractor proceed as follows Measure rear universal joint working angle This angle should be 1 to 3 degrees at zero Fig 15 Indexing Gauge to Adapter UNIVERSAL JOINTS amp PROPELLER SHAFT 9 ADD SHIMS 58x705 Fig 16 Bubble Location Forward of Center passenger load Reasonable care must be ex ercised to obtain accuracy of this measurement NOTE If car is located on a hoist that supports rear o
14. ubble of gauge to show zero or level position With zero remaining in the level po sition remove gauge from differential hous ing and install gauge along the underside of rear propeller shaft as shown in Figure 12 With gauge properly located under shaft with level readable from the left side of shaft Fig 12 note the location of the leading edge of bubble in level gauge if bubble is still at zero or level position or within three gradua Fig 12 IiIndexing Gauge Under Shaft CHRYSLER SERVICE MANUAL 58x702 Fig 13 Checking Propeller Shaft Angle tion marks fore or aft rear axle joint angle is within specifications and should be consid ered standard adjustment If leading edge of bubble is forward of the third graduation the propeller shaft angle should be corrected by placing a 2 degree tap ered shim between the rear axle housing pads and both rear springs with the thick end of shim towards the front of car NOTE To install shim the rear spring U bolts should be loosened just enough to allow for installation of tapered shim without mis alignment of spring center bolt and housiug pad To allow the differential carrier to reposition itself or assume the new angularity after in stallation of tapered shims between housing pad and rear spring the control strut frame Fig 14 Gauge Adapter Installed CHRYSLER SERVICE MANUAL to bracket bolts should be loosened to unload the strut Reshim
15. variation of no more than 003 inch If one side of pin ex tends more than 003 inch farther than the other propeller shaft will be out of balance Tool C 3534 LC 1 and 2 models Tool C 3211 on the LC 3 as shown in Figure 3 will facili tate removal installation and centering of trunnion pin Failure to observe these recommendations may result in an out of balance condition caus ing vibration sz rae EP ERERARRERARZAT es H xt R i 55P1045 Fig 3 Installing Joint Pin CHRYSLER SERVICE MANUAL 4 SERVICING EXTERNAL TYPE UNIVERSAL JOINT DUST COVER To replace an external type universal joint dust cover Fig 4 that is damaged remove pro peller shaft assembly from car and clamp lightly in vise One end of shaft should be resting on bench in a horizontal position dis assemble joint removing all parts except body and pin Clean body ball head and pin thor oughly A complete coating of grease or suitable rubber lubricant must be smeared on outside and inside of dust cover entire surface of ball head pin and inside of body It is very im portant that this instruction be followed Stretch grease soaked boot or dust cover over pin and ball head as shown in Figure 5 Work dust cover into body as far as possible CAUTION USE NO TOOLS FOR THIS OPERATION With body in position so pin can enter ball channels pull body sharply over pin thereby forcing dust cover into body With one hand _ grip e
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