Welcome Visitor! Please take a few seconds and Register
for our forum. Even if you don't want to post, you can still 'Like' and react to posts.
The M5R2 that is used in the 90's F150's
Thats good for a stock/ slightly turned up 4bt. If you plan on doing any work to it, you will want a ZF from a 250/350.
ZF5 from 90's f250/f350? You could definitely handle any power, but the ZF6 is enormous and heavy, it wouldn't fit if I had to guess.