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the crown wheel and pinion adjustment is the same for all differentials so a specific workshop manual or any vehicle workshop manual or diff rebuild manual will have the procedure for it
RING AND PINION TOOTH CONTACTPATTERN.—The ring and pinion tooth contactpattern is used to double-check ring and pinionadjustment.To check the accuracy of your adjustments, coatthe ring gear teeth with a thin coat of red lead, whitegrease, hydrated ferric oxide (yellow oxide or iron), orPrussian blue. Turn the ring gear one way and then theother to rub the teeth together, producing a contactpattern on the teeth. Carefully note the contact patternthat shows up on the teeth where the substance used hasbeen wiped off.A good contact pattern is one located in the centerof the gear teeth (fig. 5-21). Figure 5-21 shows severalring and pinion gear contact patterns. Study each andnote the suggested correction for the faulty contact
You don't set the pinion by torque. Get it to where there is no real slop and place a sheet of notebook paper between the ring and pinion teeth, rotate it to get a imprint of the pattern on the paper. Once you've tightened the pinion nut enough to get a pattern/imprint of the teeth in the center of the pinion, you'll be spot on and adjusted. The pinion nut should be a ny-lock nut, with the nylon at the top of the nut cap so it won't loosen or move. You're done.
Adjustment to crown wheel and pinion has to be done after bearing replacement on the pinion and carrier. It is a method that unless you have done a lot of diff repairs will amount to a trial and error procedure to get it right. Fortunately any work shop manual that you can borrow will have the way to set up the diff and there will be photos and directions on which to move to get the setting right. It is important to get the reading right as correct gear mesh will ensure a long lasting quite diff operation.
you adjust the backlash and pinion depth by add or removing shims from the side bearings and from under the large pinion bearing, here is a pattern chart, you will need to get some pattern past and put on the gears then turn the pinion and check the pattern on the gears keep adding or removing shims until you have the pattern correct.....good luck\
P.S. I cant recommend doing this job by yourself get some help from someone who has done this before, 9 out of 10 people who try this repair will destroy the rear end, if the pinino depth is to deep you will brake the ring gear if to shallow the rear end will make so much noise you can't drive it.
There is no torque specs,this nut has to be tightened back like it was ,the best thing to do,was,to late now,is to use a torque wrench to remove the nut,and remember the torque,and when replacing it,torque it back to that spec,the reason being,there is a crush sleeve between the front pinion bearing ,and the rear pinion bearing,and it has to be crushed to a certain amount,to acquire deepness into the ring gear,anyway just give it about 25 lbs torque,any more the crush sleeve will crush even more and the deepness of the pinion will be too much.
This problem can be caused by a crush sleeve that needs replaced. Proper installation of this sleeve is critical for noise free operation. If the pinion nut is loosened at any time during the adjustment process then a new sleeve must be installed.
There is no torque specs,this nut has to be tightened back like it was ,the best thing to do,was,to late now,is to use a torque wrench to remove the nut,and remember the torque,and when replacing it,torque it back to that spec,the reason being,there is a crush sleeve between the front pion bearing ,and the rear pinion bearing,and it has to be crushed to a certain amount,to aquire deepness into the ring gear,anyway just give it about 25 lbs torque,any more the crush sleeve will crush even more and the deepness of the pinion will be too much.
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