Punkskalar
Hugh's HandBuilt
So I've been messing with transmissions this week, for fun, and to see WHY the 5th Gear OD from MikesXS won't work in the early transmissions (as stated by MikesXS). I've taken it for granted in the past, and supposedly the gears are "cut different" seems to be the popular opinion.
BUT, I've got a 72 model transmission in front of me, and an 80' model transmission.
Side by side, the 5th gears are identical in tooth cut, with the later gear having narrower teeth than the early... The narrower teeth are due to a relief cut on the backide of the gear, which appear to be due to the extra thickness of the gear next to it on the later model transmissions.
So I have swapped the MikesXS gear onto the early transmission, and have run it through all the gears in the cases... The narrower teeth seem to have the same amount of tooth contact as stock, and the extra clearance would obviously not be a problem at all. There is seemingly no reason it won't work....
BUT, I've got a 72 model transmission in front of me, and an 80' model transmission.
Side by side, the 5th gears are identical in tooth cut, with the later gear having narrower teeth than the early... The narrower teeth are due to a relief cut on the backide of the gear, which appear to be due to the extra thickness of the gear next to it on the later model transmissions.
So I have swapped the MikesXS gear onto the early transmission, and have run it through all the gears in the cases... The narrower teeth seem to have the same amount of tooth contact as stock, and the extra clearance would obviously not be a problem at all. There is seemingly no reason it won't work....