Section XII UNIVERSAL JOINTS AND PROPELLER SHAFT
Contents
1. drive line This type of joint is used in Models C 67 C 68 C 69 and C 300 at the front universal joint The Cross Type universal joint is used at the rear joint of all models and the front and center bearing joints of the C 70 Models The C 70 Models are equipped with a center bearing and two propeller shafts No adjustments are provided to compensate for wear in the 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 assemble parts in their original positions may cause an unbalanced condition in the propeller shaft CROSS TYPE 1 SERVICING CROSS TYPE UNIVERSAL JOINTS Fig 1 1 Disconnect front end of propeller shaft at transmission flange 2 Disconnect rear end of propeller shaft and remove propeller shaft 3 Remove two bushing retainers and remove bushings Tilt the cross so that it may be removed from the propeller shaft yoke 4 Straighten out the end of the retainer lock and remove the two roller and block as semblies 5 Remove the dust seals and retainers 6 Inspect parts and replace parts that show wear 7 Lubricate the roller and bushings with uni versal joint grease extreme pressure and assemble joint in reverse order of disas sembly 0940 UNIV JOINTS AND PROPELLER SHAFT CHRYSLER SERVICE MANUAL BALL AND TRUNNION TYPE 2 SERVICING BALL AND2. TRUNNION TYPE UNIVERSAL JOINTS To disassemble universal joint for repair or in spection of all component parts refer to Figure 2 and proceed as follows 1 Remove the joint body metal cover and gas ket by bending tabs of cover away from the body then remove cover and gasket 2 Slide body down on propeller shaft exposing the two centering buttons Remove the cen tering buttons and springs from the ends of the trunnion pin 3 Slide the two balls rollers and thrust wash ers off the trunnion pin 4 Wash all parts with cleaning solvent and blow dry with compressed air Inspect and replace worn parts NOTE Reconditioning of ball and trunnion type univer sal joints will only be necessary when excessive free backlash exists between the balls and the trunnion In some instances it will be found that Fig 3 Installing Universal Joint Pin the universal joint body has worn and it will be necessary to replace all parts including the 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 the process of manufacture Care should be exercised to maintain this condition of balance by close adherence to the following 1 Do not use more than 214 ounces of lubri cant in a universal joint ball and trunnion type at any time 2 Keep the
3. 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 the trunnion pin is centered in the shaft Each end of pin should protrude the same distance with a variation of no more than 003 inch If one side of the pin ex tends more than 008 inch farther than the other the propeller shaft will be out of balance Tool C 552 as shown in Figure 8 will facilitate the removal installation and centering of the trun NON pin 3 Failure to observe these recommendations may result in an out of balance condition causing vibration 4 SERVICING EXTERNAL TYPE UNIVERSAL JOINT DUST COVER To replace an external type universal joint dust cover Fig 4 that is damaged remove the pro peller shaft assembly from the car and clamp lightly in a vise One end of the shaft should be resting on the bench in a horizontal position then proceed as follows CHRYSLER SERVICE MANUAL UNIV JOINTS AND PROPELLER SHAFT 541 1 2 3 4 5 UNIVERSAL JOINT CENTERING PIN UNIVERSAL JOINT 55x766 Fig 4 External Type Dust Cover Disassemble joint removing all parts except the body and pin Clean body ball head and pin thoroughly A complete coating of grease or suitable rubber lubricant must be smeared on the outside and inside of dust cover entire sur face of the ball head pin and in
4. ND PROPELLER SHAFT CHRYSLER SERVICE MANUAL ROLLER AND BUSHING ROLLER AND BLOCK ASSEMBLY A PROPELLER SHAFT BLOCK RETAINER _ BUSHING RETAINER BLOCK RETAINER LOCKWASHER ROLLER DUST SEAL DUST SEAL RETAINER CROSS ASSEMBLY ROLLER AND BLOCK ASSEMBLY SHAFT BOLT BUSHING RETAINER ROLLER DUST SEAL ROLLER AND BUSHING ASSEMBLY ae DUST SEAL RETAINER 55x767 Fig 1 Rear Universal Joint Cross Type Disassembled View CENTERING 9 BUTTON SPRING BALL AND ROLLERS lt GREASE COVER GASKET PROPELLER SHAFT SHAFT BOLT 54 49 Fig 2 Front Universal Joint Ball Trunnion Disassembled View CHRYSLER SERVICE MANUAL UNIV JOINTS AND PROPELLER SHAFT 539 Section XII UNIVERSAL JOINTS AND PROPELLER SHAFT UNIVERSAL JOINTS Two types of Universal Joints are used on the 1955 Chrysler Models and are as follows The Cross Type as shown in Figure 1 and the Ball and Trunnion Type as shown in Figure 2 The ball head of each joint 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 the balls needle bearings thrust washer centering button and button spring at each end extends through the propeller shaft ball and rides in the ball channels in the body of the joint assembly This balanced installation is designed to absorb the thrust and torque of the
5. NUMBER Section XII UNIVERSAL JOINTS AND PROPELLER SHAFT SERVICE BULLETIN REFERENCE SUBJECT CHANGES CHRYSLER SERVICE MANUAL UNIV JOINTS AND PROPELLER SHAFT 537 UNIVERSAL JOINTS AND PROPELLER SHAFT DATA AND SPECIFICATIONS Propeller Shaft Number used 1 1 1 2 1 Diameter With Standard Transmission 31 in Front and Rear With PowerFlite Transmission 3 in 3 in 31 in 214 in 31 in Front and Rear With Air Conditioning 3 in 31 31 in 2 in 8310 in Length Centerline to Centerline Front of U Joints 5954 59134 581 in 5234 in 59134 in Rear 291146 in Flange to Flange 612545 in 6110 in 60 gt in 6114 in Lubrication Pre Pack Universal Joints TEE Pea Front Ball and Trunnion Type Cross Type Front Rear Cross Type Only Ball and Trunnion Rear Cross E Bearing Anti F riction Every 20 000 miles TIGHTENING REFERENCE Foot Pounds Ball and Trunnion Type Joint Attaching 8 5 55 Cross Type Joint Attaching 20 Spline Seal icc es es ok Soh SW ee EBA beh CA RRS 25 Companion Flange INUts 4 64 5365 150 NOTE These specifications are for standard axle ratios 938 UNIV JOINTS A
6. PE PROPELLER SHAFT 6 SERVICING CROSS AND YOKE TYPE PROPELLER SHAFT a Removal Remove nuts and lockwashers holding universal joint and propeller shaft to differential and transmission companion flanges Remove pro peller shaft assembly b Disassembly 1 Place assembly in a bench vise and remove the cross roller bearing block tie retainer which holds the cross roller bearing blocks on cross 2 Remove bearing blocks dust seals and dust seal retainers 3 Remove retainers from cross roller bearings Press out bearings and cross 4 Remove dust seals and retainers from cross The cross roller bearing block and its compo nent parts form an assembly The cross roller bearing with its component parts also form an assembly These parts are not serviced separately After disassembly clean and inspect the parts and replace as necessary those worn or damaged 044 0 JOINTS AND PROPELLER SHAFT CHRYSLER SERVICE MANUAL Fig 12 Balance Arrows c Assembly Lubricate all parts before assembling If the splined joint at the front of the propeller shaft has been disassembled fill cavity with 5 ounces by weight of MS 870 pressure gun winter grade chassis grease On 8 passenger models the center bearing is a sealed bearing and does not require lubrication 1 Install dust shields and retainers on cross 2 Press the cross roller bearing and bushing assembly into the yoke with the c
7. ed pack bearings with universal joint grease and reassemble c Inspect universal joint bearings for wear and replace as necessary
8. er on the universal joints Excessive grease 042 UNIV JOINTS AND PROPELLER SHAFT CHRYSLER SERVICE MANUAL CLAMP GROOVE LARGE 55x771 Fig 7 Internal Type Dust Cover can be forced into the boot and cause the shaft to be thrown out of balance burst boot or the lubricant can be lost through the injection hole during high speed operation The joints must be disassembled and packed with universal joint grease 5 SERVICING INTERNAL TYPE UNIVERSAL JOINT DUST COVER The propeller shafts incorporating the internal type dust covers Fig 7 are standard on the C 300 Models and New Yorker Models equipped with air conditioning To replace a damaged dust cover proceed as follows 1 Remove propeller shaft from car and light BALLHEAD DUST COVER PIN 55 768 Fig 8 Sliding Dust Cover over Ball Head and Pin 2 3 4 5 6 7 8 9 JOINT BODY BALLHEAD DUST COVER 555772 Fig 9 Installing Small Clamp on Dust Cover ly clamp shaft in a vise with the other end supported in a horizontal position Disassemble joint remove all parts except the body and pin Clean all parts including body ball head and pin thoroughly Push body all the way back install boot by stretching it over the ball head and pin as shown in Figure 8 No lubricant applied to any parts thus far Position boot as near to ball head as possible then form sma
9. ingers and center bearing securely on the shaft The center bearing housing and slingers can be disassem bled inspected and parts can be replaced as re FRONT PROPELLER SHAFT 51x857 Fig 17 Installing Companion Flange quired Refer to Fig 13 The service procedure is as follows 1 Clamp front propeller shaft in a vise and remove cotter pin Place Tool C 784 over flange Fig 14 and remove flange nut and flat washer 2 Index and mark flange and shaft to retain original balance Remove flange and slinger from shaft with Tool C 452 as shown in Figure 15 3 With the jaws of Tool C 459 over the hous ing as shown in Figure 16 be careful not to crimp slingers force slingers and bearing off the shaft 4 Remove bearing from housing with a suit able drift When installing new bearing use drift Tool C 202 being careful to start bearing evenly to avoid distorting bushing Insert splined end of shaft with slinger through bearing and slide center bearing flange over shaft Draw flange on shaft with Tool C 496 as shown in Figure 17 Tighten nut to 150 foot pounds torque 046 UNIV JOINTS AND PROPELLER SHAFT CHRYSLER SERVICE MANUAL SERVICE DIAGNOSIS 8 PROPELLER SHAFT VIBRATES Possible Causes a Undercoating on shaft flanges drums etc b Loose companion flange nuts Improper alignment of balance arrows d Flange runout e Worn spines on shaft or in flange Remedie
10. ll clamp around boot and thread one end of clamp through slot pro vided in other end of clamp Use suitable pliers to constrict clamp as far as possible by hand Fig 9 Secure clamp by bending end of clamp completely over Do not cut off excess amount of clamp Apply light coat of universal joint grease to inside of body This will aid in working boot through body Install thrust washers balls rollers etc on ends of pin Pull body over ball head and work back and forth until boot protrudes enough to be grasped with fingers then pull boot through body as shown in Figure 10 CHRYSLER SERVICE MANUAL DUST COVER BODY 55x 69 Fig 10 Working Dust Cover Through Body CAUTION Do not use any sharp tool for this operation 10 Wipe off any lubricant from contacting surfaces on both body and boot Fig 11 Clean the clamp groove also on the outside of boot THIS IS IMPORTANT 11 Install clamp using same procedure as described for the small clamp Cut off ex UNIV JOINTS AND PROPELLER SHAFT 543 55x770 Fig 11 Cleaning Lubricant from Contacting Surface of Dust Cover cessive amount of clamp and completely bend end of clamp over 12 Coat ball head assembly and inside of body with 2 ounces of universal joint grease Work body back and forth so that grease will be distributed on all parts 13 Install gasket and grease cover Bend tabs of cover over to secure cover CROSS AND YOKE TY
11. ross in proper location CAUTION Make certain that all of the roller bearings are correctly placed in the roller bushing Also be HOUSING COTTERPIN DUST SLINGER WASHER FLANGE INSULATOR si S FRONT PROPELLER SHAFT S ri rq 7 Ge Nad 51x854 Fig 14 Removing Companion Flange Nut sure balance arrows are in alignment Fig 12 d Installation Place propeller shaft in its correct position under car Make certain that the slip spline end of the shaft is located toward front of car Insert at taching screws and tighten securely 7 SERVICING PROPELLER SHAFT CENTER BEARING The center bearing and housing must be removed CENTER BEARING P DUST SLINGER LOCKWASHER PROPELLER SHAFT ey LOCK WASHER Tja NUT Fig 13 Propeller Shaft Center Bearing Disassembled View 8 Passenger Models _ ___ __ Ses vs Ss SSDS CHRYSLER SERVICE MANUAL UNIV JOINTS AND PROPELLER SHAFT 545 FRONT PROPELLER SHAFT ay 51x855 Fig 15 Removing Companion Flange FRONT PROPELLER i SHAFT hey 51x856 Fig 16 Removing Center Bearing from Shaft as a unit together with the front propeller shaft for servicing The splined center flange is fastened to the end of the propeller shaft and holds the sl
12. s a If propeller shaft drum and flange are not shielded while car is being undercoated the undercoating material may accumulate on the underside of the propeller shaft and cause vibra tion To remedy such a condition inspect shaft and remove the undercoating material if pres ent with a suitable solvent b Check transmission flange nuts and rear axle differential flange nuts for looseness Tight en to Data and Specifications Check alignment of balance arrows on both shaft and front universal joint These arrows must be exactly in line If not reposition splines so that arrows are properly aligned d Check for flange runout In many instances it is possible to correct a flange runout condition by repositioning the universal joint 180 degrees with the companion flange Reposition only one universal joint at a time and road test car after each repositioning operation e Check the splines If excessively loose in spect the splines on the shaft or in the flange for wear or damage Replace shaft of flange as nec essary to correct this condition 9 UNIVERSAL JOINTS NOISY Possible Causes a Loose propeller shaft flange bolts b Improper lubrication Worn universal joint bearings Remedies a Check universal joints for possible damage 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 requir
13. side of body It is very important that this instruction be followed Stretch the grease soaked boot or dust cover over the pin and ball head as shown in Figure 5 Work the dust cover into the body as far as possible PROPELLER SHAFT UNIVERSAL JOINT BODY DUST COVER OR BOOT 49x910 Fig 5 Sliding Cover over Ball Head and Pin Fig 6 Working Dust Cover Through Body CAUTION USE NO TOOLS FOR THIS OPERATION 6 7 8 9 10 11 With the body in position so the pin can enter the ball channels pull the body sharp ly over the pin thereby forcing the dust cover into the body With one hand grip the end of the dust cover protruding through the back end of body With the other hand pump the body back and forth as shown in Figure 6 until the entire dust cover has passed through the body During the operation the cone may have reversed itself inside the dust cover Pull it out to its normal position Slide the dust cover in the ball head groove and over the neck of the body then secure with clamps provided Insert 214 ounces of heavy fiber universal joint grease in the joint and install the cover Install shaft using new lockwashers Be sure to double check the 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 the boot or dust cov
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