Where is the fill in and drain plug for the transfer case?

If you want to know how here it is. Transfer cases have 2 plugs. A drain plug on the lower back of the case. And it has a fill/check plug. Remove top plug first to vent case. Remove bottom plug to drain oil. Replace bottom plug and tighten. You will need a pump or squeeze bottle to fill the case. Fill through the top hole until oil comes out of hole. Replace top plug...that's it.
Refer to owners manual for oil weight. Probably 90 but check to be sure.

1. Be sure to run your car (in 4WD) for about 5-10 minutes or so to warm the oil up and be sure to park on a level ground.First we need to gather our materials. This is what I used for my oil change:Initial expenses

• Oil Catcher - $10 at Pep Boys
• Fluid Pump - $5 at Pep Boys
• 24mm wrench or ratchet (assumed ownership)
• 12mm? and 14mm? sockets to remove skidplate

Transfer Case Change Expenses

• 3 Qt 75W90 Gear Oil - $21
• (I used Redline from myoilshop.com)

2. Locate the Transfer Case.
Remove the Fill Hole plug first, then place your oil catcher in position, and remove the drain hole plug.
While the oil drains, clean off the drain plug.

3. When finished draining, replace the drain plug, and proceed to pump the fluid into the fill hole.
I filled until the fluid overran, but you can check the fluid by sticking a pinky into the hold and checking the level.
Replace the fill hole plug, and done.

To fill transfer, you didnt list the type of truck but all are about the same.
what is not the same is the type of oil used in the transfer case, its important to use the correct type. the transfer case is fill from the side, theres a drain plug at the rear bottom and then the fill is mid way up on the side of the case, you will fill until oil runs back out, allow extra oil to drain when stream is low put plug in. hope this helps.

More than likely both units will use atf, but will run as separate units. There should be drain and fill plugs on the transfer case. Plug towards the bottom of the case would be the drain, plug about halfway up would be the fill. Add fluid untill it runs out of this mid-position plug and replace the plug.

Hi there,

CAUTION

New transfer case lubricant must be installed any time the transfer case has been submerged in water. Also, transfer case failure CAN result if the correct fill procedures are not followed.

NOTE: The transfer case is lubricated for life and is not to be checked unless a leak is suspected or a repair is necessary.

1. Remove the drain plug and drain the transfer case.
2. Apply sealant to the drain plug threads and install the plug.
3. The fluid level must be even with the bottom of the filler hole with the vehicle on flat, level ground.

To Fill:

1. Remove the fill plug and fill the transfer case with SAE 75W-140 synthetic gear lubricant.
2. Apply sealant to the fill plug and install the plug.

Cheers,


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CAPACITIES
Engine, 2WDwithout filter..........3.5 quarts[1]
Engine, 4WDwithout filter..........4.0 quarts[1]
Cooling System, Initial Fill..........8.5 quarts
AMSOIL Antifreeze and Engine Coolant
Automatic Transmission, Total Fill..........7.4 quarts
Manual Transmission, 2WD..........4.2 pints
Manual Transmission, 4WD..........8.4 pints
Differential, 2WD Rear..........3.2 pints
Differential, 4WD Rear..........2.7 pints
Differential, Front..........2.7 pints
Transfer Case,..........4.6 pints

1. Add extra oil when replacing filter.
refill check oil level.

TORQUES
Oil Drain Plug.....22-29 ft-lbs
Transfer case
Fill Plug.....18-25 ft-lbs
Drain Plug.....18-25 ft-lbs
Manual Transmission
Fill Plug.....18-25 ft-lbs
Drain Plug.....18-25 ft-lbs

find drain plug ,bolt with allen head, loosen and remove( place drain pan underneath first) drain fluid, replace plug, find upper fill,check plug fill until overflow replace plug

Use ATF+4

Do not use Dexron or Mercon

I assume you are looking for how often maintenance is required. Every 30,000 miles or 24 monthss requires a drain and refill.

Specs: RECOMMENDED LUBRICANT AND FILL LEVEL Recommended lubricant for the NV231 transfer case is Mopart DexronII, or ATFPlus3, type7176. Approximate lubricant fill capacity is 1.2liters (2.5pints).The fill and drain plugs are both in the rear case.Correct fill level is to the bottom edge of the fill plug hole. Be sure the vehicle is level to ensure an accurate fluid level check.

No need for a diagram, to drain the oil, there's a drain plug on the bottom of the transfer box, under the handbrake drum. To fill, the fill plug is about in line with the centre of the handbrake drum and to the left. I think both plugs are 1/2" square. Fill to overflow with Texaco Multi-Gear 75W/90R. Takes about 2L or so.