Noreaster
Official beer tester
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- Apr 25, 2006
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Finally got around to changing the differentials & the transfer case to synthetic. So I figured Id write up a DIY for anybody interested.
Front differential
Whats needed
3/8" or 1/2" ratchet
13mm & 15mm sockets(if your changing the vent that is a 24mm deep socket)
drain pan
2 qts. 75w-90 gear oil
hand pump
white vent cap part #12479390(if you have a 01-02 & switching to synthetic)
Start off by removing the (front diff. skid plate if equipped, 4-15mm bolts)
fill plug(15mm) & then remove the drain plug(13mm) let the old fluid drain for a few minutes. Make sure to clean off the magnet on the drain plug. If your changing the vent plug nows a great time to do it, disconnect the vent hose & whatever way you can get in there with a socket(24mm) on it & turn the ratchet. Install new vent, reattach hose.
Put the drain plug back in & add the approx. 2 qts. into the fill hole with the hand pump, install fill plug (& bolt skidplate back up if equipped). Check every 5,000 miles.
Rear Differential
Whats needed
15mm socket
3/8" ratchet
drain pan
4 qts. 75w-90 gear oil
hand pump
Remove the fill plug(15mm) then the drain plug(3/8" ratchet) drain the fluid, Im not sure if the drain plug has a magnet or the metal dust just accumulates there, clean any debris off.
Reinstall drain plug, add 4qts.(roughly) gear oil into the fill hole with hand pump, fluid should be around 1/2" below fill hole, install fill plug. Check every 5,000 miles
Transfer Case
Whats needed
3/8" or 1/2" ratchet
18mm socket & 19mm deep socket
18mm standard or ratcheting wrench
2 qts. Dex3 or Transynd or Torquedrive ATF(standard way)
3 qts. 5w-30 oil(new method)
drain pan
hand pump
pipe sealant or teflon tape
Standard method
Remove fill plug(18mm) remove drain plug(18mm wrench) drain fluid
Apply pipe sealant or teflon tape to the drain plug & install,
add 2qts into fill hole with hand pump, apply sealant on fill plug & install
New method use standard method & then this
Unclip & disconnect the plug from the sensor on top of the case & removed the sensor(19mm deep) add 1 qt into sensor hole. Install sensor, connect the plug. Check every 5,000 miles & if using oil replace every 10,000 miles.
This a new way to do fluid changes on NV261(floor shift 4x4) & NV263(push button 4x4) from an article. Ill have to find the article again or maybe somebody could post it?
Cost
Amsoil 5w-30 3 qts. $21.75
Amsoil Severe Gear 75w-90 $76.10
Hand pump $11.10
Total
$100.05
thats list price on the products
Front differential
Whats needed
3/8" or 1/2" ratchet
13mm & 15mm sockets(if your changing the vent that is a 24mm deep socket)
drain pan
2 qts. 75w-90 gear oil
hand pump
white vent cap part #12479390(if you have a 01-02 & switching to synthetic)
Start off by removing the (front diff. skid plate if equipped, 4-15mm bolts)
fill plug(15mm) & then remove the drain plug(13mm) let the old fluid drain for a few minutes. Make sure to clean off the magnet on the drain plug. If your changing the vent plug nows a great time to do it, disconnect the vent hose & whatever way you can get in there with a socket(24mm) on it & turn the ratchet. Install new vent, reattach hose.
Put the drain plug back in & add the approx. 2 qts. into the fill hole with the hand pump, install fill plug (& bolt skidplate back up if equipped). Check every 5,000 miles.
Rear Differential
Whats needed
15mm socket
3/8" ratchet
drain pan
4 qts. 75w-90 gear oil
hand pump
Remove the fill plug(15mm) then the drain plug(3/8" ratchet) drain the fluid, Im not sure if the drain plug has a magnet or the metal dust just accumulates there, clean any debris off.
Reinstall drain plug, add 4qts.(roughly) gear oil into the fill hole with hand pump, fluid should be around 1/2" below fill hole, install fill plug. Check every 5,000 miles
Transfer Case
Whats needed
3/8" or 1/2" ratchet
18mm socket & 19mm deep socket
18mm standard or ratcheting wrench
2 qts. Dex3 or Transynd or Torquedrive ATF(standard way)
3 qts. 5w-30 oil(new method)
drain pan
hand pump
pipe sealant or teflon tape
Standard method
Remove fill plug(18mm) remove drain plug(18mm wrench) drain fluid
Apply pipe sealant or teflon tape to the drain plug & install,
add 2qts into fill hole with hand pump, apply sealant on fill plug & install
New method use standard method & then this
Unclip & disconnect the plug from the sensor on top of the case & removed the sensor(19mm deep) add 1 qt into sensor hole. Install sensor, connect the plug. Check every 5,000 miles & if using oil replace every 10,000 miles.
This a new way to do fluid changes on NV261(floor shift 4x4) & NV263(push button 4x4) from an article. Ill have to find the article again or maybe somebody could post it?
Cost
Amsoil 5w-30 3 qts. $21.75
Amsoil Severe Gear 75w-90 $76.10
Hand pump $11.10
Total
$100.05
thats list price on the products
Last edited:
That there friend Sam sure is a good guy hes the first guy out to lend you hand on those hot muggy days wrenchin under the Truck on a piece of cardboard. I have one of those stand up friends His name is Mr Molsen Molsen Canadian funny accent though Been there when the other friends are out playing golf Boost's your morale:Cheer: To our wrenchin friends