dwb
Proven Member
- 853
- 605
- Sep 9, 2021
-
Broomfield,
Colorado
I'm about to undergo a transfer case rebuild (1g/5 speed). My drive gear splines are wore out and it's got over a quarter million miles on it. Nothing broken that I'm aware of. So a new (used) drive gear, all four taper bearings, seals (incl. the two large o-rings) and a new nut will go into it. The upper cover gasket is unavailable, so hoping RTV with do the trick there. I'm also installing a new output shaft in the transmission. Am I missing anything? Can I reuse the collar on the t-case output shaft, which looks like it sits between the two bearings?
I rebuilt the transmission myself so I'm not too afraid of the transfer case, but the one thing that intimidates me is that large nut and the taper bearings underneath it. Does anyone have any tips for cracking that nut loose? What size is it (55mm?)? I don't yet have a wrench or anything large enough and I don't have a vice sturdy enough to hold the shaft. I was thinking I'd get a large adjustable open-end wrench for the nut and use an old yolk with a bar stuck through it to hold the shaft via the output splines.
As far as the taper bearings, I'm going to attempt to use a large 2-arm gear puller/bearing separator to pull the bearings off (I have no access to a press). My concern here is the bearings on the output shaft are too far down the shaft to reach with the puller. I'm thinking I could use some sort of arm extension, either fabricate something out of steel or maybe even use my spring compressors as an extension. Not sure how I'm getting the new ones on yet, maybe just a piece of steel pipe and a hammer or maybe pull them on from the gear side with the puller.
Any comments/suggestions before I tear it apart?
I rebuilt the transmission myself so I'm not too afraid of the transfer case, but the one thing that intimidates me is that large nut and the taper bearings underneath it. Does anyone have any tips for cracking that nut loose? What size is it (55mm?)? I don't yet have a wrench or anything large enough and I don't have a vice sturdy enough to hold the shaft. I was thinking I'd get a large adjustable open-end wrench for the nut and use an old yolk with a bar stuck through it to hold the shaft via the output splines.
As far as the taper bearings, I'm going to attempt to use a large 2-arm gear puller/bearing separator to pull the bearings off (I have no access to a press). My concern here is the bearings on the output shaft are too far down the shaft to reach with the puller. I'm thinking I could use some sort of arm extension, either fabricate something out of steel or maybe even use my spring compressors as an extension. Not sure how I'm getting the new ones on yet, maybe just a piece of steel pipe and a hammer or maybe pull them on from the gear side with the puller.
Any comments/suggestions before I tear it apart?