The T-4/T-5 bell housing is the wrong one for a T-18 swap. You need a T-150 or T-176 bell housing.
-Andy W
I have an opportunity to buy a '80's AMC Eagle with a 258 and a four
> speed for $300. The motor has low miles and the car is a driver. I
> know the motor would bolt in to a AMC CJ, but does anyone know about
> the four speed? Is it a T4 or something? If this is so it may also
> give me the right bell housing for a T-18 swap. I have to drive a
> little to check the car out and wanted to find out if it's worth the > trip.