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How can I change oil in transfer case? - 2006 Chevrolet Trailblazer

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There are 2 plugs on it. One is fill, one is drain. Both take a 10mm allen socket to get them out. On the back side of the T case is where the plugs are located. Both are on the drivers side of the drive shaft. Lower one is drain. higher one is fill. Fill it till it starts coming out the hole. You can not fill it with transmission fluid. it has it's own fluid.

Posted on Apr 20, 2016

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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.

Posted on Apr 20, 2016

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Whine in transfer case


proper oil in transfer case ? most transfer cases have a separate oil reservoir, heavy duty off roading sometimes makes a hole in oil seals and oil leaks out , I allways wash off all my oil seals surfaces after a visit to the MUD PIT saves me a ton on fixing seals

Jan 07, 2016 | Cars & Trucks

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Where do i find my transfer case and what fluid does it use


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)
tcase1-nggid03733-ngg0dyn-320x240x100-00f0w010c010r110f110r010t010.jpg 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.
tcase2-nggid03734-ngg0dyn-320x240x100-00f0w010c010r110f110r010t010.jpg
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.
tcase3-nggid03735-ngg0dyn-320x240x100-00f0w010c010r110f110r010t010.jpg

Oct 10, 2014 | 2000 Mitsubishi Montero Sport

1 Answer

Do you need to change the oil every so often in the transfer case 4 wheel drive.


They change it after a certain thousand miles. Read the manufacturers recommendation. It is a good point to have it changed every 30000 miles.

Jul 07, 2014 | 2006 Cadillac STS

1 Answer

What is the capacity of the transfer case and exactly what fluid do i use


GM Full-Size Trucks 1980-1987 Repair Guide

Transfer Case - FLUID RECOMMENDATIONS
The type of lubricant used in the transfer case varies with model year and type of transfer case. Refer to the list below for the type that applies to your truck.

1980
Conventional transfer cases require SAE 80W or SAE 80W-90 GL-5 gear lubricant.
Full time systems use SAE 10W-30 or 10W-40 engine oil.
1981
Conventional transfer cases require DEXRON®II transmission fluid.
1982-85
All transfer cases require DEXRON®II transmission fluid.
1986-87
All transfer cases except the K30/35 series require DEXRON®II transmission fluid.

For fluid recommendations for the K30/35 transfer cases refer to the owner's manual.
LEVEL CHECKS

fb6e8b4.jpg
Fig. Model 208 Transfer Case

Check the four wheel drive transfer case lubricant level every 4 months or 6,000 miles.
  1. With the truck parked on a level surface and the parking brake firmly applied, remove the filler plug from the rear of the transfer case (behind the transmission). Be careful not to take out the drain plug at the bottom.
  2. If lubricant trickles out, there is enough. If not, carefully insert a finger and check that the level is up to the edge of the hole, EXCEPT in full time four wheel drive cases should be 1 /2 in. below the hole.
Lubricant may be added, if necessary, with a funnel and tube, or a squeeze bulb.



DRAIN AND REFILL
Part Time Systems
No intervals are specified for changing transfer case lubricant, but it is a good idea for trucks that are worked hard or driven in deep water.
  1. With the transfer case warmed up, park on a level surface and apply the parking brake.
  2. Slide a pan of a least 6 pts. capacity under the case drain plug.
  3. Remove the filler plug from the rear of the transfer case (behind the transmission). Remove the drain plug from the bottom.
  4. Wipe the area clean and replace the drain plug.
  5. Add lubricant with a suction gun or squeeze bulb. Conventional transfer cases require SAE 80W-90 GL-5 Gear Lubricant.
  6. When the lubricant level is up to the bottom of the filler hole, replace the plug.
Full Time Four Wheel Drive
The full time system requires oil changes at regular intervals, according to the amount and type of work done by the unit. Trucks used for normal on-off road work should have the transfer case oil changed at 24,000 mile intervals. When used for heavy duty work, trailer towing, snowplowing, and the like, the interval should be halved to 12,000 miles. If the truck is exposed to extremely dusty or muddy conditions, the oil should be changed at 1,000 mile intervals.
The transfer case oil must be hot before changing. Drive the truck until the engine has reached normal operating temperature, and park on a level surface.
  1. Slide a pan of at least 8 pts. capacity under the case drain plug.
  2. Remove the filler plug.
  3. Remove the lowest bolt from the front output shaft rear bearing retainer cover, and allow the lubricant to drain. Be careful; the oil will be hot. There may be a drain plug. If so, remove that instead.
  4. Remove the six bolts on the left (driver's) side of the case which secure to P.T.O. (power take-off) cover. Remove this cover and allow the lubricant to drain out.
  5. Remove the speedometer driven gear from the upper left rear corner of the case.
  6. Use a suction gun to remove as much lubricant as possible from the case cover location and the speedometer gear location.
  7. Install the speedometer driven gear, the P.T.O. cover, and the lowest bolt or drain plug.
  8. Add approximately seven pints of oil through the filler plug opening. The proper oil to use is 10W-30 or 10W-40 engine oil.
  9. Check the fluid level and add sufficient oil to raise the level to 1 /2 in. below the filler plug opening. Replace the plug, and wipe the surfaces of the case and skid plate to remove any excess oil. Drive the truck and check for leaks.

I really hope help ypou woth this (remember rated this help) Good luck.

Oct 16, 2009 | 1983 Chevrolet Silverado

1 Answer

Want to change my transfer case oil and want to know how much oil


Your transfer case is probably an NV241HD and it will take 3.25 qts. I would put in Amsoil, Royal Purple, or Mobil 1, I have used these products and have no problems with them.

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1 Answer

4x4 transfer case oil change for 2007 Chevy Tahoe


Go buy the chevrolet shop manual for the truck. Its worth every penny in the long run and will save you thousands by not going to the dealer for everything, because they consult the shop manual. make sure your tranny doesnt share fluid with your transfer case, you could over fill or underfill it easily.

Jun 03, 2009 | 2007 Chevrolet Tahoe

2 Answers

What;s the oil capacity for a 2002 chevy trailblazer 4.2 6 cyl?


Here are the Fluid CAPACITIES & MORE:
Engine, with filter..........4.6 quarts[1]
Cooling System, Initial Fill..........12.0 quarts
Automatic Transmission, Total Fill
4 speed 4L60, 60E..........11.0 quarts
Manual Transmission, NV1500..........5.7 pints
Manual Transmission, NV3500..........4.2 pints
Differential, with 8.6 ring gear Rear..........4.0 pints
Differential, with 7.25 ring gear Front..........2.5 pints[2]
Differential, with 8.25 ring gear Front..........4.2 pints[2]
Differential, with 9.25 ring gear Front..........5.9 pints[2]
Differential, Front..........2.5 pints
Differential, Rear..........4.0 pints
Transfer Case,BW4472..........2.5 pints
Transfer Case,NV136/236/246..........4.0 pints
Transfer Case,NP207..........4.6 pints
Transfer Case,NP231, NP233..........2.3 pints[3]
Transfer Case,NV231/233..........2.1 pints[3]
1. After refill check oil level.
2. Do not use synthetic lubricant in axles using RTV sealant.
Synthetic lubricant will chemically atack RTV sealant.
3. Identification: check tag on case.

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1 Answer

Transfer case oil change- 1999 Land Rover Discovery II


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.

Mar 29, 2009 | 1999 Land Rover Discovery

1 Answer

I need to check my transfer case level and change the transfer case oil - 95 Isuzu Trooper. Can anyone tell me how and what oil to use?


there is really no need to change the transfer case oil other than not having anything else to do and it is very hard to get it out.. putting it in on the other hand .. you will have a recessed bolt in the top on the transfer case it looks like a 1/2 inch drive extension will go in.. back that out and put your finger down in the hole if you can't touch fluid it is low. go to local auto parts and ask for 90 weight transfer case oil.. if you tell them what type vehicle they will give you the right oil. probably need spout to get it in the hole.. secure nut back on and your done.. good luck ray

Jan 17, 2009 | 1995 Isuzu Trooper

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