Other things to consider.

If you can get the 1990 1/2 lockup auto you will get better highway performance.

The roll stopper bracket is in a different location on frame between the auto and the manual.

On my swap I had to add a bracket to bolt the back of the cross member to.

Make sure you get all the drive plates and pilot adaptors from the back of the the V6 you pull the tranny from.

Kevin

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