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Re: Can't measure rear end pre load, options?
The important point is to NOT collapse the crush sleeve any more (changing pre-load). Tighten until no play & then tighten a little more ( i would go no where near 270 ft lbs)
It takes a lot of torque to crush a sleeve when it is new (i'm talking a BIG cheater bar!) but not so much after is has been "crushed". I hammer the nut on with an impact to approx 130 ft lbs. & call it good. ( apply non-hardening sealant to the splines & loctite to the threads)
Before you remove the nut (too late now) you can measure overall turning torque at the pinion (this includes carrier pre-load & seal drag, etc). this gives you a target to aim for upon re-assembly & you don't have to gut the diff to measure just pinion pre-load. IMO, this is more accurate than marking the nut.
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