Ok here is the proto type. Eaton type unit like the 1964 units.

Machining right now

The units will be 2.69-3.23 and 3.42 -614

I have tested the 2.69 3.23 3.42 4.10 GM gears this is all I had...But I am sure they will all fit... OH and yes it does work with 6.14 gears BUT I would say that is a FULL SPOOL gear...Yes? lol. Jim

Price could be up there though.
If interest is high - Detroit Locker and true tracs could also follow.

 

Looks great but Damn i wish I could get the same for my 57 rear with the 28 spline axles.

 

You mean 29....right? Yah I know but you can not concentrate on the one -2 year option. Besides that power is higher and higher each year so we have to stay with 30+ splines on almost all applications these days. Jim

 

Jim, what is your opinion / rule HP wise of when to upgrade from 28 axle splines to 30. I know part of the answer is what application the rear will be used...but just speaking in general. Thx.

 

Would this work for a 61 88?