[yako]

Hola Condor y gracias, encontre algo en este foro aparentemente para la tranfer case se necesita un aceite con un poco de modoficador de friccion.

http://www.tahoeforum.com/showthread.php?t=10940

http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2564804

http://www.thedieselpageforums.com/tdpforum/showthread.php?t=18773


http://www.duramaxforum.com/forum/06-07-5-lbz-lly-duramax-powertrain/21882-transfer-case-fluid.html

http://www.tahoeyukonforum.com/forum/archive/index.php/t-48950.html

Total scam. Drain and fill will be just fine if everything is working ok.

The front and rear differential takes synthetic gear oil, the transfer case takes about 3qt of Auto Trak II fluid if you have an auto 4WD button, or ATF if you do not.

You can tell by the fluid color, Auto Trak II is blue and ATF is red.

Do not put ATF in a t-case that calls for auto trak, the t-case has an internal clutch that requires the special blue fluid