Regal V6-231 3.8L Turbo VIN 8 4-bbl (1983)
Carrier Pinion Shaft: Technical Service Bulletins
Different Case Pinion Cross Shaft - Removal When Broken
Model Year 1983
Bulletin No. 83-179
File in Group 40
Number
1
Date
Aug. '83
SUBJECT:
DIFFERENTIAL CASE PINION CROSS SHAFT REMOVAL PROCEDURE WITH A BROKEN PINION SHAFT LOCK SCREW
MODELS AFFECTED: ALL REAR WHEEL DRIVE MDDELS - ALL YEARS
FIGURE 1
The following procedure should be used to remove a broken differential pinion cross shaft lock screw. Safety glasses must be worn.
Standard Differential
1.
Install puller such as J-22888 or equivalent with the puller jaws inserted into the case openings and puller screw against the end of the pinion cross
shaft on the side of the case opposite the lock screw. Refer to Figure #1. This is necessary so shearing the lock screw will not distress the pinion
gear surface inside the case. A spacer such as a 5/16" nut may be required between the puller screw and the pinion cross shaft.
2.
Position the case assembly on an angle so pinion cross shaft will clear pinion gear head during removal procedure.
3.
Tighten puller screw to 50-55 ft.lbs. (68-75 N-m). Tap end of puller once with a hammer. Retighten puller screw about 1/8 turn (50-55 ft.lbs.
[68-75 N-m]) and tap again. Repeat procedure until pinion cross shaft shears the lock screw.
4.
When the lock screw is sheared, remove puller, turn case assembly and remove pinion cross shaft. The remainder of the lock screw can then
usually be removed with a prick punch. A slight metal distress from lock screw hole to outer pinion of case is acceptable. If case is broken out at
lock screw hole area, the case must be replaced.
5.
Install new parts as required and reassemble differential.
Limited Slip Differential
A limited slip differential case assembly does not have access for both puller jaws.
