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Ford 9" 4.88s and 2 year old detroit locker?

basalt51

NAXJA Member #761
Location
Woodland, CA
I'm swapping in an EB '77 9" that has 4.10 gears, detroit, and 31-spline moser axles. I have 4.88s in my front axle. My question is, will the detroit work with 4.88s in the 9"? Tractech only shows up to 4.56, but I've heard that's been changed?
 
basalt51 said:
I'm swapping in an EB '77 9" that has 4.10 gears, detroit, and 31-spline moser axles. I have 4.88s in my front axle. My question is, will the detroit work with 4.88s in the 9"? Tractech only shows up to 4.56, but I've heard that's been changed?

Yes. I recently did a 5.43 gear with a Detroit in Strange center section.

Make sure the diff doesn't hit the pinion support. If it does, lightly grind the support for clearance.

CRASH
 
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