Rear Axles - CHRYSLER Corp. 8 1/4" & 1965-73 8 3/4" Ring Gear Separate Housing: Description
NOTE:
Some models use other units. See 7 1/4", 8 1/4", 9 1/4" 9 3/4" & Spicer Power-Lock or Spacer Trac-Lock in this Section.
CHANGES, CAUTIONS, CORRECTIONS
IDENTIFICATION OF CHRYSLER CORP. DIFFERENTIALS - Easy identification can be made at the differential cover. The 7 1/4" integral housing has an irregular 9 bolt pattern cover; 8 1/4" integral housing has an oval 10 bolt pattern cover; 9 1/4" & 9 3/4" integral housing has an irregular 10 bolt pattern cover; and an 8 1/4" & 8 3/4" separate housing type differential is also used.
- REAR AXLE HOUSING PRODUCTION 8, DRAIN PROCEDURE CHANGE: Drain plug eliminated on later cars. Use suction gun and hose to remove lubricant.
- REAR SPRING "U" BOLT TORQUE SPECIFICATION CHANGE: Torque specification reduced to 50 lbs., superseding all previous specifications, to reduce possibility of damage to axle shaft bearings.
- 1972 CHRYSLER CORP. 8 3/4" AXLES SPECIAL LUBRICATION NOTE: All 8 3/4" rear axle shaft bearings are packed with a special lubricant (colored preen), to prevent brinelling of the new crowned roller bearings in shipment. If for any reason a crowned roller bearing must be repacked, the green type lubricant must be thoroughly washed out of the bearing as the two lubricants are not compatible.
Semi-floating, hypoid gear type with Hotchkiss drive. Differential case is "cage" type.