1t's a 69 fastback. I did the full swap, A body housing, with BBP axles cut and resplined. 8 3/4" searched everwhere for the 489 carrier with tapered 1-7/8" spline and third member, 373 ratio. Disk brake kit from summit. I had to do some minor altering on the kit to make it fit right, but the thing I really like about it is the E brake set up. it will work with my existing cable, and they are heavy duty.