Folks, there are some things they don't show on YouTube. I found that the output pilot bushing was terribly loose and full of gunk. It had built up so badly, it had pushed the shaft to one side and rubbed a funny spot on the output shaft.
Also, the drive sprocket bushing was several thousands out, which made a big wobble and the chain a little looser than it should be. I replaced that bushing and wow, not NEARLY as much play, just a tiny bit.
I did learn how to time the 60/40 planetary gear. Pretty simple, but I was tired and turned to YouTube.
Thing is, when I washed it out, I felt more needed to be done. So, brake cleaner in hand I began to wash and spin each set of gear combinations. MAN...lots of bronze dusk was on my towel. SO, I blew it dry, put down a fresh towel and did it again. Just as much bronze as before. Did it a third time, and again, lots of bronze dust. By the fourth time I still had some bronze but now it was an acceptable level. Now...this was done after a good cleaning in the parts washer.
I feel the BW4485 could have benefitted from pilot roller bearings rather than bronze bushings. OR at least require a fluid change every 36K miles.
Thing is, the bushings are cheap. Took a while to find the correct ones.
Oh, there is a bushing behind the slip yoke seal on the rear output.
The toughest one is pressed into the rear output shaft. Used a pilot bearing expandable hammer puller. Took a while, but finally got it. Pressing in, no issues.
Forgot to mention, 214K miles...and I think she was really abused. I also think someone had been in this T case before. The sealant looked layered.
Also, the drive sprocket bushing was several thousands out, which made a big wobble and the chain a little looser than it should be. I replaced that bushing and wow, not NEARLY as much play, just a tiny bit.
I did learn how to time the 60/40 planetary gear. Pretty simple, but I was tired and turned to YouTube.
Thing is, when I washed it out, I felt more needed to be done. So, brake cleaner in hand I began to wash and spin each set of gear combinations. MAN...lots of bronze dusk was on my towel. SO, I blew it dry, put down a fresh towel and did it again. Just as much bronze as before. Did it a third time, and again, lots of bronze dust. By the fourth time I still had some bronze but now it was an acceptable level. Now...this was done after a good cleaning in the parts washer.
I feel the BW4485 could have benefitted from pilot roller bearings rather than bronze bushings. OR at least require a fluid change every 36K miles.
Thing is, the bushings are cheap. Took a while to find the correct ones.
Oh, there is a bushing behind the slip yoke seal on the rear output.
The toughest one is pressed into the rear output shaft. Used a pilot bearing expandable hammer puller. Took a while, but finally got it. Pressing in, no issues.
Forgot to mention, 214K miles...and I think she was really abused. I also think someone had been in this T case before. The sealant looked layered.
