What are the dimensions of a TT rear axle not damaged where bearings normally run? and what is the total overall length? Can NOS AA rear axles fit in a TT, as the ring gear and pinions are the same?
Hey John, I hope you are doing better. I don't have the Size for the axle where the bearing rides right now but I will find one and get this to you. The AA worm drive axles are almost the same as the TT's except that the AA axle is a bit longer. I think that 1/2 inch comes to mind.
The AA axle was made longer to get past the extra parking brake shoe set used in the AA's.
John, I just miked a spare axle at 1.625". Not sure of the length as it is plugged into a center section. I hope this helps and hope you are doing well. Bob
Here are the measurements.
Axle where bearing sits is 1.618.
Axle length is 31 7/8".
I don't know why Roberts axle is larger as I measured several rustless ones. I know that the Gear side is closer to what Robert has. I have several other sets I can also measure them when I find them but their not as nice as these ones are.
Anyway I hope that helps.
I have a customer in Florida, whose back axles are junk, and I have used ones here that are Iffy! also have a pr of NOS AA rear axles, and was wondering how much difference there is in them, so maybe a excellent truck mechanic who builds Big truck rear ends could modify the AA ones for the TT????
You know John I though about that with a used AA also but if the damage is in the bearing area a half inch wouldn't really make that much difference. It might work on an axle that has no seal wear grove though. Now comes the, should you keep the AA axles as is because there are not very many around? I have only ever seen one in person in my life, if that means anything. I know there are decent axles still to be found somewhere. Most of my parts are now coming from the drier climates like the desert areas. One more thing John I would not worry too much about the seal wear groves if they are not very deep +or- 1/16" or so.
A picture would help me if I could see it.