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Will 7.5" crown wheel fit in 7" diff
norm007 - 3/7/09 at 07:53 AM

Good morning.
Could anybody tell me if the 3.92 crown wheel and pinion from a 7.5" diff will fit into my 3.62 7" diff please?

Also, is it possible to swap the bolt on shafts to push in?
Any pitfalls or pointers?

Thanks

Dave

[Edited on 3/7/09 by norm007]

imp paul - 3/7/09 at 09:20 AM

I do think it will as its only the outside case of the diff that is wider as far as i know give it a go

dan__wright - 3/7/09 at 09:24 AM

i have a 3.92 push in i would swap if your interested as i need a lower ratio

norm007 - 3/7/09 at 09:33 AM

quote:
Originally posted by dan__wright
i have a 3.92 push in i would swap if your interested as i need a lower ratio



U2U sent

Liam - 3/7/09 at 11:03 AM

I rather doubt it, or they wouldn't have needed to design and manufacture a larger case for the larger diff!

snapper - 3/7/09 at 06:07 PM

does not fit.
Even if you could attach it to the planet gear arangement the pinion gear would need to be further back in the bearings.

MikeRJ - 4/7/09 at 05:17 PM

quote:
Originally posted by imp paul
I do think it will as its only the outside case of the diff that is wider as far as i know give it a go


The 7.5" refers to the diameter from the crown wheel, not the external dimensions of the diff.

7" and 7.5" crownwheels are not interchangeable.

norm007 - 4/7/09 at 05:54 PM

So, does that mean I could modify a complete 7.5" diff down to 7" ???
Drive shaft lengths, etc etc etc???

[Edited on 7/7/09 by norm007]

norm007 - 4/7/09 at 05:55 PM

quote:
Originally posted by dan__wright
i have a 3.92 push in i would swap if your interested as i need a lower ratio


Yes please, I am very interested