If there were gaskets on a joint when the gearbox was built, it should be rebuilt with gaskets at that joint. The designers factor in that thickness when designing the 'box. If the gasket is not in place, then the tolerances tighten up. Hylomar is the blue stuff. There is a red permatex anaerobic sealant that can be used on gasketless and gasketed joints. I can't for the life of me remeber what it is and I can't run out to the garage and look as it's half a world away. I've purchased it at NAPA, so that might be an alternative for you. If I think of it, I'll post again... -- Mike -------------- Original message from "stainlessilusion" <5n-@xxxxxxx>: -------------- > Okay so now I'm confused, use the gaskets or not? I have Permatex > Hylomar sealant-isn't the Hylomar what they're sealed with from > factory? Since you guys have done this before, I won't use the > Hylomar; the last thing I want is a leaky trans. I couldn't find any > Anaerobic sealant (none of the auto stores carried it, and the local > parts stores wouldn't order it for me unless I got a case of 12!), but > I do have Permatex Black Silicon sealant, will that work instead of > the Hylomar? I didn't think the silicon could seal against oils for > extended periods of time, then again my Hylomar tube said it is only > oil *resistant*. What clearances will be affected from the gaskets? > Also do I use the silicon to seal the bolts that go through the case > halves as well or thread sealant or??? -----Dani B. #5003 [Non-text portions of this message have been removed] To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/