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Upgrading 8.25 from 27 to 29 spline

dan1977p

NAXJA Forum User
I was under the impression that upgrading from 27 to 29 spline in my 91 8.25 would only require a spider gear change or a lunchbox with 29 splines and 29 spline shafts. I got everything out and went to put a 29 spline spartan locker in and it's not even close. The part number is the same from on Rockauto for 2000 and 1991 8.25 carriers so I'm a bit confused.
Was my assumption correct or do I need a new carrier and will that 29 spline carrier fit in my 1991 housing with the same bearings?
 
You need a 29 spline carrier. I don't recall if the carrier bearings are different, but they probably are. The wheel bearings/seals are the same.
 
I've been searching all morning for just the open carrier like I was able to find for my D30 and I can't find anything that doesn't have LSD. Anyone have one lying around from a full case locker they want to offload?
 
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