55.2-59 Firewall dimensions

[_Ogre]

Originally Posted by dsraven

unless you are using the original engine mounts then you don't really know exactly where the engine will sit,

this is the best idea and the method i used even with my cab on the frame.
truk had the stock front mounts and a th350 rear trans mount when i bought it.
keeping all mounts intact, i built side mounts, then removed the front stock mounts.

12 years later when i did the current build, with the front clip off, i used the trans mount and fabricated side mounts off the just installed mustII x-member.
once the cab was removed, i blocked the motor up and swapped out the th350 for 700r4 and fabricated a very rigid trans x-member.
trans x-member also reinforced the cab mounts, replacing the support the stock trans x-member had.
the only fitment issue i ran into when the newly painted cab was reinstalled was i had to slightly modify the floor trans cover.
very minor