Toyota Pick-ups, Land Cruiser, and 4 Runner 1997-00

Drive Axles

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FLUID RECOMMENDATIONS



Use Hypoid gear oil API GL5. Above 0°F (18°C) use SAE 90W. Below 0°F (18°C) use SAE 80W or 80W90.

LEVEL CHECK



Front

The oil in the front differential should be checked at least every 7,500 miles (12,000 km).



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Fig. The front and rear filler plugs on most of the trucks covered by this guide are located in these areas shown

  1. With the truck parked on a level surface, remove the filler plug from the back of the differential.
  2.  

The plug on the bottom is the drain plug.

  1. If the oil begins to trickle out of the hole, there is enough. Otherwise, carefully insert your finger into the hole and check to see if the oil is up to the bottom edge of the filler hole.
  2.  



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Fig. Locate the filler plug . . .



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Fig. . . . then check the fluid level with your finger

  1. If not, add oil through the hole until the level is at the edge of the hole. Most gear oils come in a plastic squeeze bottle with a nozzle, making oil addition easier.
  2.  
  3. Install the filler plug and drive the truck for a short distance. Stop the truck and check for leaks.
  4.  

Rear

The oil in the rear differential should be checked at least every 7,500 miles (12,000 km).

  1. With the truck parked on a level surface, remove the filler plug from the back of the differential.
  2.  

The plug on the bottom is the drain plug.

  1. If the oil begins to trickle out of the hole, there is enough. Otherwise, carefully insert your finger (watch out for sharp threads) into the hole and check to see if the oil is up to the bottom edge of the filler hole.
  2.  



Click image to see an enlarged view

Fig. Check the gear oil level. The oil should be level with the threads in the plug opening



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Fig. Once loose, unscrew the filler plug by hand . . .



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Fig. . . . then remove the filler plug



Click image to see an enlarged view

Fig. Using your finger, carefully check the oil level



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Fig. The oil level should be level with the bottom threads

  1. If not, add oil through the hole until the level is at the edge of the hole. Most gear oils come in a plastic squeeze bottle with a nozzle, making oil addition easier.
  2.  
  3. Install the filler plug and drive the truck for a short distance. Stop the truck and check for leaks.
  4.  

DRAIN AND REFILL



Front

The gear oil in the front axle should be changed at least every 25,00030,000 miles (40,00048,000 km), or immediately if driven in deep water.

  1. Park the vehicle on a level surface. Set the parking brake.
  2.  
  3. Clean the area around the drain plug.
  4.  
  5. Remove the filler (upper) plug. Place a container that is large enough to catch all of the differential oil under the drain plug.
  6.  



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Fig. Drain the axle's gear oil into a suitable container

  1. Remove the drain (lower) plug and gasket, if so equipped. Allow all of the oil to drain into the container.
  2.  



Click image to see an enlarged view

Fig. Remove the drain (lower) plug and gasket, if so equipped

  1. Install the drain plug. Tighten it so that it will not leak, but do NOT over-tighten.
  2.  
  3. Refill with the proper grade and viscosity of axle lubricant. Be sure that the level reaches the bottom of the filler plug. DO NOT overfill.
  4.  



Click image to see an enlarged view

Fig. Slide the pump's tube (shown) into the filler hole, or use bottled fluid with a built-in funnel

  1. Install the filler plug and check for leakage.
  2.  

Rear

The gear oil in the rear axle should be changed at least every 25,00030,000 miles (40,00048,000 km), or immediately if driven in deep water.

  1. Park the vehicle on a level surface. Set the parking brake.
  2.  
  3. Clean the area around the drain plug.
  4.  



Click image to see an enlarged view

Fig. Clean the area around the drain plugrear axle shown

  1. Remove the filler (upper) plug. Place a container that is large enough to catch all of the differential oil under the drain plug.
  2.  



Click image to see an enlarged view

Fig. Unscrew the filler plug

  1. Remove the drain (lower) plug and gasket, if so equipped. Allow all of the oil to drain into the container.
  2.  



Click image to see an enlarged view

Fig. Drain the oil into a suitable container

  1. Install the drain plug. Tighten it so that it will not leak, but do NOT over-tighten.
  2.  



Click image to see an enlarged view

Fig. Install the filler (shown) and drain plugs along with the gaskets, securely

  1. Refill with the proper grade and viscosity of axle lubricant. Be sure that the level reaches the bottom of the filler plug. Do NOT over-fill.
  2.  



Click image to see an enlarged view

Fig. Refill the axle with the proper gear oil

  1. Install the filler plug and check for leakage.
  2.  

 
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