I used a TCI,mustang 2 frontend in my 55 stepside.I used a motor mount setup from Golden State Parts,item no.6-416,with motor mounts no.6-416MP.Cost was around $80.This mount setup goes from framerail to framerail,just center it and weld it in.A very easy install.I had to use blockhugger headers,for steering clearance.I set the engine height so it was level,placing a level ontop of the intake manifold,where the carb mounts.Of course to do this you must have the tranny in and mounted at the rear to get it leveled accurately.This setup has worked out very good for me. Dale