FLUID NP8 TRANSFER CASE

SOURCE: Ned to change the oil in transfer case

The Z71 typically comes with the auto 4wd transfer case (cannot remember the GM number). This requires AutoTrak II, which is available at a GM dealer. Do not use any other fluid in this transfer case! The previous post was correct in the location of the two plugs, but not on the fluid (the other types of transfer cases by GM use ATF). The transfer case is located under the truck right under the cab. There is a small skid plate under it, and a large driveshaft leaves the rear end of the case heading to the rear differential (axle). If you have the manual or electronic w/o auto 4WD transfer case, you can use Dexron III, but Dexron VI is a better fluid that is also now available at your local auto parts store. Again, if you have the AUTO 4WD button in the dash, use the AutoTrak II fluid from the dealer.

Harvey N Tawatao

• 3854 Answers
• Posted on Jun 05, 2009

SOURCE: fluid type in 1985 gmc sierra k2500 4x4 aluminum

You can use the same ATF as the transmission or a synthetic ATF for GM Transmission. Most guys will use normal ATF and mix Lucas ATF transmission additive to it, to make the fluid last longer. Good luck and hope this helps. There was two types of transfer case available to your truck. NP205 takes 5.1 pints NP208 takes 10.0 pints

SOURCE: what type of fluid goes in the transfer case on a

The correct fluid for your transfer is dextron/mercon transmission fluid.To check the fluid level,jack up both ends of the vehicle and be sure to support with jack stands.Make sure vehicle is level.If you look at the rear of the transfer case,you will see two plugs,one lower than the other.Remove the lower plug and if fluid runs out it was overfilled,if nothing runs out,stick your pinky finger in the hole and feel for the fluid level.If it needs fluid,remove upper plug and pour in fluid until it runs out the bottom hole.Then replace plugs and lower vehicle