I am using a '91 Firebird radiator. I had to build a mounting system for it, and it's so wide the bumper brackets had to come out. Now the bumper is just cosmetic, and I just built mounting tabs to hang it on the core support.
An update on mine. I bought a 3 core aluminum rad off eBay. Looks great just figuring out the lower rad hose now. Outlet on rad is a bit smaller than the water pump and the stock GM lower hose doesn’t clear the manual fuel pump or have the correct bends (ordered for Nova same as radiator). Boo. May have to go with flex.
Got her in but have a question about the driveshaft. What did your shaft cost to make and did you keep it 2 piece for you Ext can guys? I did have my driveshaft shortened 1/2” in the past. Are there parts that I can get together to make it easier/cheaper? TIA.
I originally used a front Chevy shaft(cut to fit) welded to the Mazda yoke going into the carrier bearing. I've since swapped in a 10 bolt LSD 3:23 gear, and now my shaft is a junk yard 2 piece from a Chevy truck cut down to fit.