You can use the V6 auto from 89-90 if you swap the bell housing. It's a bolt up to your existing transfer case.

The bellhousing requires a new O ring and it partly an extension of the OD and the front pump. The good news is you dont need to open the unit up to do the swap.

For a stock 2.6 I would reccomend using the non lockup tranny.

Kevin

87 Turbo Intercooled Raider, roller cam, torsen rear diff, LSD front diff, lockup auto with modified converter, V6 brakes, low transfer case gears...