picked up a 12 bolt last night think it was from an olds but ? numbers on center are 402227 cfd(maybe 1 or i also) p 279 looks great inside has 2.79 ratio non posi but no c-clips i thought all 12 bolts were c-clip were bop canadian versions bolt in or have eliminators been put in (looks stock) just need to know for sure what i have so i can get other gears and posi for it thanks for any help guys
ok did some research over on the olds forum and .. its a 1970 o 12 bolt 2.78 non posi out of a vista cruiser made 1 year only, man and i thought my 8.2 was gonna be too hard(spendy) to get things for anyone know of someone interested in this? guessn ill keep lookin for a chevy 12 or bop 8.5 probably should go to an olds restorer
NO need to fear. We have parts for the rear and it will be plenty strong. Gear ratios available are 3.42 3.90 4.10 aftermarket. I have reconditioned posi units OR brand new units also. Every rear will be in about the same price range to build these days. Just PM and will get you set-up. It is nice to have the bolt in axles if your going to track it some so you do not have a accident on a broken axle shaft which is ALWAYS a possible happening when racing. Pictured is most likely what your cover looks like. YOU might want to check the rear to see the axle spline count...YOU could have a w-30 olds rear with 31 spline axles which are BIGGER than chevy axles. JIm
ok jim ill count the splines and then have you quote me on a carrier 3.42 gears and posi maybe i wont let it go so quickly cause it is the one with oiled axle bearings not sealed(by #'s i'll check that too) #'s ive found show it should be 28 axle and 27 pinion ill check i know it is the 10 bolt ring gear for sure
