hey guys ........got major issues with transfer case.......any chance anyone would have or be able to get hold of diagrams or drawings of the transfer case and gear layout ........any help would be graetly appreciated......
heres what it is doin.......when you back of in 4wd only .......the drivetrain bangs......and binds up......have spent a ***** load of dollars rebiuldin the front end with new cvs(have allready broken 1shaft and siezed another cv)...and my avm hubs were knackered so i replaced them as well......but it is still bloody there ........2wd its ok........just when drive is put to the front hey....... <img src="/forums/images/graemlins/scared.gif" alt="" /> <img src="/forums/images/graemlins/scared.gif" alt="" />
Cheers Adam
hate to tell you, but EVERY TIME i have had the same noise, i thought it was the transfer case and it's been the front hubs, one or both are broken, but still not able to be turned by hand when locked and didn't just fall apart, either. i had to put a new hub on to find out the problem was the hub.
only one person on this board has ever had a chain come apart and it was after someone did some maintenance or something and what happened was one of the pins in the chain came loose and the chain slowly came undone.
i'd make sure it's not a hub, CV, front driveshaft u-joint, etc. before i went to the hassle of taking the t-case down and cracking it open.
Make that effectively two people. I managed to stretch the chain in mine to the point that it was jumping cogs, and I originally thought the noise was the diff or hubs...
Having said that it would be prudent to check the easy/cheap things first (hubs engaging properly, driveshaft unis good/lubricated, oil of front diff for metal shavings, oil of tcase for metal shavings) then contemplate pulling things out for disassembly.
You seem to have excluded the hubs (new) and CV's (new) so your assumption of something more sinister carries a bit of weight. Front diffs do go "bang" and tcases go "bang". That much I can tell you from experience (along with 2 hubs so far).
It has happened on other chain drive tcases too (early Mazda Bravo or "B series utes/Ford Ranger utes, known as "Couriers" out here), and some Hilux/Tacoma tcases. Even some of our more robust vehicles have issues with the chain drives (Nissan GQ/GU/GUII Patrol).
