After adding a sure grip 741 case rear diff with 3.23 gears last season, I noticed some problems: A bit of a whine and leaking fluid.
I was given the diff assuming it was OK, although I never had it BP’d or checked or anything. I swapped it out anyway, added the lube and sure grip fluid and off I went. No break in period was needed, or so I thought, as it had unknown miles on it.
So, with all that, I decided to tear into it one more time, yank the diff and have a local guy blue print it, check for cracks and gage it.
My questions:
1. Anything additionally I should consider to the diff?
2. Is there anything I need to do to the rear end prior to assy, seal kits, etc?
3. I was planning on using gasket paper this time, instead of seal-in-a-tube.
4. Dumb question of the day, does it harm my banjo style axle by placing jack under the center?
Thanks all.
Oh, one more question, while I was underneath, I noticed the front driveshaft can move up/down when lifted, and the play seems to be at the automatic transmission output shaft area. Movement seems to be about 3-6mm. Is this serious? I have a high speed shake in the car after about 60-70mph.
thanks
