BentGear Posted May 26, 2021 Share Posted May 26, 2021 I am replacing the transfer case housing extention and it appears rtv gasket material may have been between them from the outside but the surfaces look really clean. Do I need to put rtv between them or cut a gasket or something else? Link to comment Share on other sites More sharing options...
scaleless Posted May 26, 2021 Share Posted May 26, 2021 Gray RTV, or any RTV that says it is rated for gear oil. Link to comment Share on other sites More sharing options...
zomeizter Posted May 26, 2021 Share Posted May 26, 2021 Use a gasket if you can get one at the local parts house. RTV is acceptable, what you saw on the mating surfaces is due to the "squeeze out" of the RTV upon tightening, that is no issue though as long as no leaks exist. Link to comment Share on other sites More sharing options...
scaleless Posted May 26, 2021 Share Posted May 26, 2021 3 minutes ago, zomeizter said: that is no issue though as long as no leaks exist To a point. If you use way to much RTV, there will be free chunks that get detached on the inside and they'll be floating around in the case! Link to comment Share on other sites More sharing options...
zomeizter Posted May 26, 2021 Share Posted May 26, 2021 Just now, scaleless said: To a point. If you use way to much RTV, there will be free chunks that get detached on the inside and they'll be floating around in the case! no one could possibly dab more RTV than required! LOL Link to comment Share on other sites More sharing options...
BentGear Posted May 27, 2021 Author Share Posted May 27, 2021 Thanks for the feedback. I went with the gray rtv. It is setting up now. If it leaks I'll switch to a gasket. The hardest part of this task was the oil seal, getting that seal in was ridiculously hard. Link to comment Share on other sites More sharing options...
mjeff87 Posted May 27, 2021 Share Posted May 27, 2021 14 hours ago, zomeizter said: no one could possibly dab more RTV than required! LOL You should have seen the diff cover on the 8.25 in my KJ. It had never been opened up by me or the PO (it had that OEM orange colored sealant from the assembly line). When I was able to *finally* pry it loose and get it off, I almost had a heart attack. The amount of RTV inside the cover was laughable, and I don't know how much actually fell off and got ground up in the r&p. I'm not sure who actually did it, the axle manufacturer or Chrysler. Link to comment Share on other sites More sharing options...
zomeizter Posted May 28, 2021 Share Posted May 28, 2021 20 hours ago, mjeff87 said: You should have seen the diff cover on the 8.25 in my KJ. It had never been opened up by me or the PO (it had that OEM orange colored sealant from the assembly line). When I was able to *finally* pry it loose and get it off, I almost had a heart attack. The amount of RTV inside the cover was laughable, and I don't know how much actually fell off and got ground up in the r&p. I'm not sure who actually did it, the axle manufacturer or Chrysler. Yeah dude, seen a fair share of "more is better" engineering... Link to comment Share on other sites More sharing options...
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