The 7m will bolt to a w56 with a n/a 7m bell housing. The R is a little more difficult as the r154 for a 7mgt has a longer input than a 4x4 R and you would need to swap inputs or modify the bell housing to make it work. The w56 is much easier and would probably hold up if your truck is not to heavy. The 7m will bolt into place of a 22r using 5m motor mounts. It will fit in the engine bay but there is no room for the stock fan and you will need to run electric fans. A 2" body lift makes the swap easier but is not necessary.