Blown Trans or transfer case

[svcattle]

I think i lost either the Trans or transfer case I was cruising along about 45 mph and heard a grinding noise now I have no forward gears . I was able to get turned around and reverse home i was able to go 30 mph in reverse but the popping noise was still there . I got home my driveway Is on kind of a down hill grade and I also have no park Either . Any ideas ??
Thanks Shaun

[svcattle]

Well I used my trusty stethoscope and Transfer case was making a terrible noise was really hoping maybe the chain was slipping on the drive gears but the chain and everything looks good inside so before I drop the Trans is there anything else I should look for??
Thanks Shaun

[DmaxMaverick]

The description sounds like the TC, and if your stethoscope test is good, the TC may was likely binding going forward. Driving any distance after the initial event probably killed it, perhaps to a point it isn't repairable. Pull the drain plug and see what comes out. Use a magnet in your drain pan. If it's bearing and gear pieces, the case is probably trashed. If it's just a broken drum or planetary gear, it may not be so bad (except for the driving-it-home-in-reverse part, maybe).

You don't have to remove the tranny, if it's good. Once the adapter is loosened from the TC, linkage, connectors and shaft disconnected, it will slide out. If the TC is a NV246 ("Auto 4x4"), start the paperwork for a second mortgage. If the model ends in a "3" (push-button, mechanical-electric shift 4x4), they aren't too bad. Make sure you use the correct fluid for either, they are different. ATF for the "push-button", or Auto-Trac II/III for the "Auto 4x4". Some say Dexron VI is compatible with the Auto-Trac fluid, but I'm not buying into it, just yet. A simple fluid mistake is too expensive.

[svcattle]

Thanks for the reply buddy . I drained the Trans have not pulled the pan yet but the oil was bright red clean not burnt and no particles came out of either the Trans or transfer case . This transmission only has 67772 miles which I know doesn't mean much but that's the history it was a reman from j&g transmisions Murray Utah

[DmaxMaverick]

You may have lucked out. I'll reserve further speculation, pending the postmortem.

[svcattle]

So I guess I should get the pan off next and see what's in there ..! Is there a drain on the converter on these? I've been running dexron xi fluid changed it twice back to back and changed the filter once just because I wanted to clean the transmisions insides good before I put it to work . I have the electric shift transfer case .