I can't say for sure without seeing the truck, but I would opt for changing
the motor mounts, or even making a custom oil pan, before I would even think
about hacking the fire wall. The motor mounts, and or the oil pan won't show as
much as changing the look of the firewall. I have the TCI MII IFS in mine,
and the original crossmember is gone, so I don't have any clearance problems.
The motor sits forward enough that I have about 3-4 inches from the firewall.
You might even look at "notching" the crossmember for clearance for the oil
to move the engine forward.
With a good cutting torch and welder, you can make anything fit.
West Burlington, IA.
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