Hello Joe, A few years ago I was trying to find 3:42 or better gears for my 67 Olds 98. I couldn't find any after-market or a factory gear for the 1967 housing. I ended up putting a 3:08 posi from a 1965 Olds 98. I do have one "spare" from a 66 Delta, these are the "pontiac type" that were standard on the 65/66 Olds B-body. In 1967 Olds went to a different, a little bigger ringed geared housing 12 bolt. Car weighs 4680# with switch-pitch on switching to "lock-up" at the 60' mark the best I can get is a 2.0 sixty foot time. If I had better gears I could knock it down a lot. Car runs 14:18@100mph. Ken
