do your homework! i would contact buffalo engineering in stanwood wa. because the ones he does they narrow the subframes 6". the rearend from the 75' camaro will work fine. too wide of track width in my opinion also if you set your ride height to low and need to raise it you run into alignment issues. going through this on a 50' 3100 with a 74' nova clip,350/350,74' nova rear. besides the alignment issues the rearend is too narrow. this truck was purchased by my cousin with all the mods already done. if i had been asked before the purchase my advice would be too pass on it. good luck on your project!