by TRENDZ » Fri Nov 06, 2009 5:56 pm
I just replaced my 91 cab(air) with a mid 80s cab with no air. The firewall is the same on the pass side where the heater/ A/C box goes. The firewall had minor differences on the drivers side where some of the wiring goes through. Nothing to sweat though.
91 d350 1/2" supply lines, 2nd gen lift pump, regulator, 366, screwed, homebrewed afc pin, linkage mods, ported head, ported ex manifold, 351ve electrically controlled, 3" boost tubes, 2nd gen I/C, 4" ex, goerand