Do Transfer Case gears have a wear pattern? (1 Viewer)

[Supra60]

I've been pawing through all of the transfer case rebuild threads for a while now, but I haven't seen anything mentioned about this...

Maybe it's a dumb question?

I'm planning on doing a rebuild on my transfer case and I was wondering if I need to mark the locations where the gears are touching so that when put back together the wear pattern is the same?

I ask because a few years back I had to change out the differential gears in the CJ-7 I used to have and didn't mark the wear pattern on the used gears going into it and got a subtle grinding noise and had to do it all over again with new gears.

Thanks

(Edit: this would be a split case on an 87 FJ60)

 

[Output Shaft]

The gear teeth don't mate with identical gears. One of the drive gears is always a different size. That being the case, the teeth are always engaging different ones with every revolution.

 

[my67nova]

When you can cut your finger on the gear tips it is time to change them. About 500,000 miles or 10 with no oil.

 

[Tapage]

I said with proper care and maintenance a non abused t-case can run way beyond that mark ..

 

[Supra60]

Thanks for the replies... I've been thinking it over most the weekend (had my PE exam on friday) and came up that there shouldn't be a pattern like there was on the spider gears (the transfer gears should always hit flat at the same spots)

I just didn't want to put all the work into it and have it messed up because I wasn't paying attention.

Thanks again