Quote:
Originally Posted by Dustin
I replaced all bearings and seals for peace of mind. The factory bearings and seals already had 20k miles on them. Would they have been okay to use? I'll leave that for each person to determine themselves. For me it was worth it to spend the extra money to have all new.
I haven't installed the ring gear and new differential yet, so all I measured was the amount of force it took to spin the pinion gear by itself. According to the factory service manual it should take between 9.8 and 16.9 in./lbs. to move the pinion. That is what determined how much shimming I needed to have.
I'm no sure what you mean by no shimming required. This is the only rear end I've done so far and it would not be possible without shims. That being said, my brother has put together a few other rear ends where he used a different method where shimming is not required, however I am unfamiliar with this and do not think it possible on this setup.
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well 20K is nothing on bearings that are not under a lot of load and not exposed to a significant amount of heat. I just pulled some out of a car with 112K miles that was driven pretty hard with a supercharger and they hardly had any wear.
By shimming I meant you should have been able to swap the diff without touching the pinion at all and chances are the lateral shims for the axle bearings would have worked as well. If you read the FSM it implies that all of these things are required (really because you are in the section about servicing the rear differential). But if you look at the goals for what you are doing its just to add the clutch LSD function, not change gear ratios...unless I missed something you are also changing gear ratios
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but in any case its always cool to see people going outside their comfort zone as I have to make it a regular occurrence to do what I do. With the proper tools nothing is complicated, just time consuming and detailed.
Mike