as the title states posi unit MUST be in perfect working condition !!!!!!!!!! NO other gear ratio's considered I need the Carrier COMPLETE with matched gear set.

I have a complete 10 bolt rearend out of a 99 t/a. It has less than 10,000 miles. 3.23 gears with the posi. $250. Only problem is that you live in CA and I'm in IL.

26 or 28 spline?

I doubt a 1999 differential will work in my rearend just a bad feeling there.

Anyways as for spline count I don't know. Whatever 1984 had originally in the 10 bolt f-body rear is what I need.

Also my preference is a 3.08 setup as my first choice then a 2.73 and 3.23
I currently have 3.73's so I could probably mount new 3.23's to my carrier so not to desperate finding 3.23's and a carrier.

I am really going for fuel economy so the higher the gear the better anyways.

The diff will work in your housing. They are the same size.

post pictures of it. and have you done any transactions on here ?

I haven't sold anything on here in years. I don't even remember my original screen name. The link to craigslist is:

Rearend

There are a couple pics there.

Sorry I will have to pass on your off just too many scammers on here and I'm not going to deal with anyone who hasn't done any transactions on here.

i can vouch for jim being a good seller, dealt with him many times over the years since hes just down the road from me

I'm new to this site, this will be my first reply. I have a 1985 camaro with 3.08, I'm looking for 3.73 rearend. Would you like to trade I in El Paso Tx.

No I am not interested in trading.

I've got a low mileage set of GM 3.42 and an auburn locker posi. But I think its for 28 spline. But I also have a set 28 spline strange axles.
Where are you located.
If you can pick it up you can have all of it for $250. Or you pay the shipping charges.

I have a 1992 Z28 has the factory 10 Bolt posi rear end with i believe 3:23 gears. The rear works great, car its self only has 70,000 miles on it. Let me know if your interested. Thanks Bert