How to replace the pinion Differential Seal on Toyota Supra without removing or disassembling the differential?

To replace the Differential Seal in the differential without disassembling or disassembling the differential itself, the procedure begins with raising the vehicle and draining the differential oil. Then disconnect and tie the drive shaft. Pry up the pinion shaft nut and determine the drive pinion bearing preload. Remove the nut and washer from the pinion shaft and use a gear puller to pull the mating flange off. Then carefully pry the oil seal out of the differential and clean the seal mounting area. The new seal is lubricated and tapped into place and the mating flange is cleaned and installed on the pinion shaft. Tap the flange into place and tighten the nuts while securing the wheel to prevent the pinion shaft from turning. Turn the flange and pinion shaft in all directions to ensure the bearings are seated and check the preload torque. Replace the shim on the pinion shaft if necessary. Reconnect the drive shaft, tighten the drain plug, and fill the housing with gear lubricant. Finally, lower the vehicle, take it for a test drive, and check for leaks around the differential mating flange.

Genuine Toyota Supra Differential Seal

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6 Differential Seals found

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Toyota Supra Slinger, Rear Differential Drive Pinion Oil
Part Number: 41214-26010
$12.25 MSRP: $17.12
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Product Specifications
- Manufacturer Note: *AXC=G392 OR G662
- Replaces: 41214-40010, 90201-28002, 41214-30010
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1986-1992 Toyota Supra | 6 Cyl 3.0L | 7MGE, 7MGTE; MA70L-BJMVFA, MA70L-BJMVFK, MA70L-BJMVZA, MA70L-BJMVZK, MA70L-BJPVFA, MA70L-BJPVFK, MA70L-BJPVZA, MA70L-BJPVZK, MA70L-BLMVFA, MA70L-BLMVFK, MA70L-BLMVZA, MA70L-BLMVZK, MA70L-BLPVFA, MA70L-BLPVFK, MA70L-BLPVZA, MA70L-BLPVZK
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Toyota Supra Oil Seal
Part Number: 90311-38010
$23.31 MSRP: $32.59
You Save: $9.28 (29%)
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Product Specifications
- Other Name: Seal, Oil (For Rear Differential Carrier); Pinion Seal
- Comment: (FOR REAR DIFFERENTIAL CARRIER)
- Replaces: 90311-38079
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1986-1992 Toyota Supra | 6 Cyl 3.0L | 7MGE, 7MGTE; MA70L-BJMVFA, MA70L-BJMVFK, MA70L-BJMVZA, MA70L-BJMVZK, MA70L-BJPVFA, MA70L-BJPVFK, MA70L-BJPVZA, MA70L-BJPVZK, MA70L-BLMVFA, MA70L-BLMVFK, MA70L-BLMVZA, MA70L-BLMVZK, MA70L-BLPVFA, MA70L-BLPVFK, MA70L-BLPVZA, MA70L-BLPVZK
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Toyota Supra Oil Seal
Part Number: 90311-44005
$18.67 MSRP: $26.10
You Save: $7.43 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Seal, Oil (For Rear Differential Carrier); Pinion Seal
- Comment: (FOR REAR DIFFERENTIAL CARRIER)
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1993-1998 Toyota Supra | 6 Cyl 3.0L | 2JZGE, 2JZGTE; JZA80L-AJFVZA, JZA80L-AJFVZK, JZA80L-AJMVFA, JZA80L-AJPVFA, JZA80L-AJPVZA, JZA80L-AJPVZK, JZA80L-ALFVZA, JZA80L-ALMVFA, JZA80L-ALPVFA, JZA80L-ALPVZA
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Toyota Supra Oil Seal
Part Number: 90311-50018
$31.52 MSRP: $44.06
You Save: $12.54 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Seal, Oil (For Rear Differential Carrier); Pinion Seal
- Comment: (FOR REAR DIFFERENTIAL CARRIER)
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1993-1998 Toyota Supra | 6 Cyl 3.0L | 2JZGE, 2JZGTE; JZA80L-AJFVZA, JZA80L-AJFVZK, JZA80L-AJMVFA, JZA80L-AJPVFA, JZA80L-AJPVZA, JZA80L-AJPVZK, JZA80L-ALFVZA, JZA80L-ALMVFA, JZA80L-ALPVFA, JZA80L-ALPVZA
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Toyota Supra SLINGER, Drive PINIO
Part Number: 41214-50010
$1.54 MSRP: $2.15
You Save: $0.61 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Slinger, Rear Differential Drive Pinion Oil
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1993-1998 Toyota Supra | 6 Cyl 3.0L | 2JZGE, 2JZGTE; JZA80L-AJFVZA, JZA80L-AJFVZK, JZA80L-AJMVFA, JZA80L-AJPVFA, JZA80L-AJPVZA, JZA80L-AJPVZK, JZA80L-ALFVZA, JZA80L-ALMVFA, JZA80L-ALPVFA, JZA80L-ALPVZA
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Toyota Supra Slinger, Rear Differential Drive Pinion Oil
Part Number: 41214-14010
Product Specifications
- Other Name: Oil Slinger
- Position: Rear
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1993-1998 Toyota Supra | 6 Cyl 3.0L | 2JZGE, 2JZGTE; JZA80L-AJFVZA, JZA80L-AJFVZK, JZA80L-AJMVFA, JZA80L-AJPVFA, JZA80L-AJPVZA, JZA80L-AJPVZK, JZA80L-ALFVZA, JZA80L-ALMVFA, JZA80L-ALPVFA, JZA80L-ALPVZA

Toyota Supra Differential Seal

Toyota Supra Differential Seal prevents gear oil from leaking from the rear end while keeping water, mud, and grit from entering and grinding away the ring and pinion. The Toyota Supra Differential Seal is further fortified by a very close rubber machined fit and rubber ring seals. This seal is placed at the axle shaft or where the driveshaft enters the housing. This allows for a tight flexible barrier for the spinning shaft. This barrier will flex on the shaft and turn. The elastomers applied are of specific synthetic varieties. These varieties were selected to give the seal better heat and pressure resistance than natural rubber. Earlier Supra generations applied open differentials and relied on a simple lip-style Differential Seal that helped maintain equal torque split. Later turbo and high-output versions with limited slip units applied a stiffer type of spring-backed Differential Seal designed to accommodate uneven torque loads sent to the wheel with traction. Both factory styles serve the same purpose but differ in thickness and flange support, with the limited slip getting an additional lip to keep oil from foaming during hard cornering. Performance-tuned gear set drivers often opt for a reinforced Differential Seal made from advanced compounds for optimized performance at higher fluid temperatures. Due to routine wear, the Toyota Supra Differential Seal will harden up over time. So, routine inspection, topping up of the 75W-90 lubricant, and prompt replacement when necessary will prevent leaks that can starve the gears.

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Toyota Supra Differential Seal Parts Questions & Experts Answers

Oil Seal
90311-38010
Q: How to replace the pinion Differential Seal on Toyota Supra without removing or disassembling the differential?
A:
To replace the Differential Seal in the differential without disassembling or disassembling the differential itself, the procedure begins with raising the vehicle and draining the differential oil. Then disconnect and tie the Drive Shaft. Pry up the pinion shaft nut and determine the drive pinion bearing preload. Remove the nut and washer from the pinion shaft and use a gear puller to pull the mating flange off. Then carefully pry the oil seal out of the differential and clean the seal mounting area. The new seal is lubricated and tapped into place and the mating flange is cleaned and installed on the pinion shaft. Tap the flange into place and tighten the nuts while securing the wheel to prevent the pinion shaft from turning. Turn the flange and pinion shaft in all directions to ensure the bearings are seated and check the preload torque. Replace the shim on the pinion shaft if necessary. Reconnect the drive shaft, tighten the drain plug, and fill the housing with gear lubricant. Finally, lower the vehicle, take it for a test drive, and check for leaks around the differential mating flange.