All transfer cases covered by this guide use Dexron®II or ATF Plus/Type 7176 automatic transmission fluid (or their superceding fluid type).
See Figure 1
Fluid should be maintained at the level of the filler plug hole. When you check the lubricant, make sure that the vehicle is level so that you get a true reading.
- Raise and safely support the vehicle with jackstands.
- Place a large pan under the transfer case.
- Using a ratchet with a 30mm socket, or a 30mm box wrench, remove the filler plug from the transfer case. Lubricant should run out of the hole.
- If there is lubricant present at the hole, it means that the case is filled to the proper level. Replace the plug quickly for a minimum loss of lubricant.
- If lubricant does not run out of the hole when the plug is removed, lubricant should be added.
- Replace the plug as soon as the lubricant reaches the level of the hole.
DRAIN & REFILL
See Figures 2 and 3
All transfer cases are to be serviced at the same time and in the same manner as the manual transmissions.
- Raise the vehicle and safely support it with jackstands.
- Place a large pan under the transfer case and remove the transfer case drain plug using a ratchet with a 30mm socket, or a 30mm box wrench.
- Let all of the fluid drain completely from the transfer case, then install the drain plug.
- Using a ratchet with a 30mm socket, or a 30mm box wrench, remove the fill plug and fill the transfer case with the proper type and amount of fluid.
- Install the fill plug.