Join Date: Jan 2015
Location: Injun Territory, 'Merica!
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they work, had a GV od unit off the back of the built Turbo 400 in my old 3/4 ton GMC. 468 BBC with 4.09 rear gearing. can I say it paid for itself, not really, didn't have the truck but for 2 years and it was just an occasional tow rig. An old friend had a similar deal, American Eagle OD in his '86, and it paid for itself, as he kept the truck into the 00's.
in a vintage musclecar thats a streetcar/cruiser, and added weight is not an issue, the GV OD and shortening the driveshaft makes a LOT more sense to me than cutting a large hole in the floor for an aftermarket Tremec 5spd... been through that. An old friend and Vette guy I'm dealing with today has two loose GV OD's he's run behind multiple BBC's. I'm looking at one today for him to see what it takes to mate to a M22 in his '72 vette.
If OD and an automatic are the priority, and the Pontiac V8 musclecar is a very healthy street machine/ cruiser, I'd go with a built 200R4, the gear ratios in the 200r4 are much more conducive to the torque band of a Pontiac than the ultra low 1st gear 700R4. Have built rears for several Pontiac with both, and just prefer the built 200R4.