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- Feb 22, 2021
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Original plans were to raceYes disc brake is going to help keep it in place. Still not as good as retaining the axle outside of the bearing.
In a drag racing application 11.0 is the fastest allowed for clips in NHRA, IHRA. They don't care what brakes... if you aren't a racer.. it don't matter.
I think the carrier is likely the weak spot on a 8 1/4. I would think running a light weight car(or '40 truck) should help.
the truck strictly track use.
The axle has the C clip
eliminator kit, and has been
shortened 3 inches per side.
Under a stress analysis CAD
program shortening the axle
greatly reduced the forces
applied to both the carrier
and the outer bearings due
less of a moment arm along
the axle. We also added a
girdle and bearing cap
reinforcement bolts. The
4-link bushings are a high
durometer rubber vs heim
joints to lessen the shock.
Ain't sayin' this was the best
way to approach this. It
certainly isn't going match
the strength of a Dana 60.
If anything, it's an
experiment. All in all,
changes made were cheaper
than the initial cost of an
8-3/4, with the benifit of
some weight savings. If
it blows up, I'll humbly
accept the failure.