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T O P I C R E V I E W
Posted - 30 Nov 2019 : 11:48:43 PM Hi, I am driving a 64 Catalina, 389 and t700R4, standard 3.42 diff, with standard training arms, new bushes.
Had a slight vibration at about 70mph so decided to check the pinion angle. WOA!!! All stock the engine/trans are 3 degrees down (ie. back is lower than front of engine, BUT the diff is the excat opposite (ie. diff yolk is 3 degrees, lower at the yolk than at the housing.. this is exactly opposite to how I think it should be. Diff pinion should be parallel to the crank, and the crank should point down slightly, front to rear.
BUT the diff and arms are 100$ 1964 stock.... or is it? What gives? Did Pontiac do something really strange?
Cheers and thanks CAM
1 L A T E S T R E P L I E S (Newest First)
Posted - 04 Dec 2019 : 08:02:00 AM Most pinion angle are pretty much straight to pitched down 3 when sitting stationary. Have another person in the car put the car in gear and apply the brakes and see what range of travel the pinion has power braking.