Larren
If your Jeepster was a V6 then the Buick will bolt right up to whatever trans was in it at first, maybe the T86. Throw away that Novak adapter. If you want automatic then get a V6 or 350 V8 Buick/Jeep transmission. (TH400) with the transfer case. and throw away that Novak adapter. If you don't like the T86 another standard Jeep 3 speed will interrchange in. Throw away that Novak adapter. If your Jeepster was a 4 cyl, you can adapt the T90 trannsmission to the Buick easily, and throw away the Novak adapter. Any more questions?
diggerG