drifterwanb666
OBS Enthusiast
we did not, its a 1996 chevy tahoe, 4D 4WD. the cam is not factory, talking with a GM tech he said i was pretty dumb for puting an aftermarket cam in the truck since he states itll never run right. im starting to belive him. the cam is a doctor bumpstick, (DR220912) recomended by another guy on this group in another page. i did no such checks, but i did notice the gears were set differently between the two dist. will rotate the gear 180* on the summit part just to see what happens.By the way, I don't think you ever told us the year & model GMT400 you're working on?