1972 Monte Carlo - Resto Mod

[dr.bombay]

One big chunk of the decision-making for the driveline (and the budget) was the rear end. the car was originally a 350 2bbl with a TH350 so maaaybe it was making 200hp from the factory which justified the 8.2" open carrier 10 bolt. I heard from builders that the best case scenario for this with upgraded guts was about 400hp. That was not going to work for what i had in mind for the car (manual trans + 475-500 whp end of day). Although it is probably overkill, i decided to go with a 9" assembled by a local builder with whom i have worked with before. Used a Currie housing with 1967 width (slightly narrower than 68-72 but with the same mounting points/spring perch location) True-trac diff and 3.50:1 gears. Corvette c6 z51 rear brakes went on (again - hardware from Kore 3 less c6 rotors and calipers I had laying around) with fitting for parking brakes which i will have to figure out later. the UMI bushings didnt quite fit in the currie housing so i went with the currie articulating joints on the housing end (the UMI joints are on the frame-tab end) so the upper trailing arms will be double-jointed. UMI verified that this there are no issues with doing this. the only thing i am a bit worried about it NVH but i wont be able to judge that until the car is on the road.