8.25 Sure-grip-Oregon
I checked the spline count and it is 27. It is out of an 89 Van with 3.55's. I used the gears in my 74 8.25 rear end in my A body.
I will sell the Sure-Grip unit alone with no extra parts for $100 shipped in the CONUSA.
Shipping is most likely going to be $25 +/- so you're getting the SG for $75 or so.
Happy to take paypal if you kick in the 3% or I can accept USPS MO.
ROB