You wrote :
I talked to Dave Hagenbach at TRF about changing the pinion seal on
later TR6 diffs with the collapsable spacers, and he advises against
it. Other than the fact that I've done it before without any trouble
(yet), I don't have any other reliability info. Obviously the spacer
is collapsed upon initial building to the point where the gear lash is
in range. Wouldn't putting the slotted nut back in the same spot,
using the same wire size, achieve the same lash, or at least close
enough for street use?
Bob,
I believe that the pinion crush sleeve is there to provide proper
pinion bearing preload. I think you're right that if the pinion is
returned to the same torque, that the preload should be the same given
that the bearings remain in place. I would suggest that you turn the
pinion flange during torquing to guarantee that the bearings are
seating properly and not further crushing the sleeve. The alternative
to replacing the seal (possible running the diff dry) would do far
more damage than improper pinion preload.
Steve Sides
Greensboro, NC
70 Spit
TR250 (in garage - waiting)
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