I have been trying to order two gaskets for an NP208. The one inbetween the bell housing and the rear case housing. And the one between the two halves of the T-case itself. No online parts company seems to have a picture or useful name to point me in the right direction. Can't even find a kit with a parts list or a picture than includes the big gasket I need.

 

Here's a hint, it comes in a tube. That's the reason you are having trouble locating it!

 

Already tried that and its leaking already, Id rather just do right and not have to worry about it

Are you telling me thats how the sealed it in the factory?

 

No gasket from the factory. GM used some special kind of RTV and its pricey. I have always used Permatex Gasket Maker #85144. The power bead canister makes things SUPER easy!

Of course, the key to getting a leak free seal is to thoroughly clean the surfaces. Permatex Gasket Remover #80645 works great at getting the surfaces cleaned up real well without resorting to abrasives which could profile the surface and cause leaks. Once clean, apply a thin bead of gasket maker on both surfaces, spreading it out, and letting it tack up for a few minutes before putting things back together. Last, allow it to cure per the instructions before putting any fluids in.

 

yeah i dont think i ever seen one. i seen a gasket for the np203 case hanging in a transmission shop. but cleaning the heck out of it and making sure no transfluid is leaking down in between there while putting the case up. ive removed and installed every make of chevy transfer cases and use just silicone with luck.... maybe let it set up 24 hours before starting it. i usually do that with intakes