How to replace the rear crankshaft seal in V8 engine on 2005 Chevrolet Trailblazer?

Remove the transmission. Remove the driveplate. Pop the Crankshaft Seal off the rear cover by using a screwdriver; one should be very careful not to mar the crankshaft or the seal bore. See how deep down the old seal is flushed into the housing bore prior to its removal to allow for a corresponding depth of the new seal. Wipe out the seal bore in the block with shop rag effectively so that no oil and dirt will be present. Apply oil to the outer periphery of the TS and place it over the crankshaft's end where the lip of the TS should be directed toward the engine. If ever possible to redo this, use seal installation tool to push the new seal back into place; otherwise such a large socket, a section of pipe or blunt tool would have to carefully hammer the new seal into the seal bore until it is flush with the rear cover. Last but not the least, the driveplate should be fitted, and then the transmission could be put into the car.

Genuine 2005 Chevrolet Trailblazer Crankshaft Seal

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3 Crankshaft Seals found

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2005 Chevrolet Trailblazer Seal Kit,Crankshaft Front Oil
Part Number: 89017622
$16.70 MSRP: $27.62
You Save: $10.92 (40%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: SEAL KIT, Engine Rear Main Bearing
- Position: Front
- Item Weight: 0.40 Pounds
- Item Dimensions: 6.1 x 6.3 x 0.5 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 89017622
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2005 Chevrolet Trailblazer Submodels:
- 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L
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2005 Chevrolet Trailblazer Seal Kit,Crankshaft Rear Oil
Part Number: 89060436
$21.93 MSRP: $36.30
You Save: $14.37 (40%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: SEAL KIT, Engine Rear Main Bearing; Crankshaft Seal, Rear Main Seal
- Position: Rear
- Replaces: 12550574, 12585671, 89018162
- Item Weight: 0.50 Pounds
- Item Dimensions: 5.1 x 5.3 x 1.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 89060436
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2005 Chevrolet Trailblazer Submodels:
- 4 DOOR, 4 DOOR EXT | 8 Cyl 5.3L, 8 Cyl 6.0L
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2005 Chevrolet Trailblazer Seal, Crankshaft Rear Oil
Part Number: 12581717
Product Specifications
- Other Name: SEAL, Engine Rear Main Bearing; Rear Main Seal
- Position: Rear
- Replaces: 24577096
- Item Weight: 0.50 Pounds
- Item Dimensions: 5.7 x 5.8 x 1.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12581717
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2005 Chevrolet Trailblazer Submodels:
- 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L

2005 Chevrolet Trailblazer Crankshaft Seal

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2005 Chevrolet Trailblazer Parts Questions & Experts Answers

Q: How to replace the rear crankshaft seal in V8 engine on 2005 Chevrolet Trailblazer?
A: Remove the transmission. Remove the driveplate. Pop the Crankshaft Seal off the rear cover by using a screwdriver; one should be very careful not to mar the crankshaft or the seal bore. See how deep down the old seal is flushed into the housing bore prior to its removal to allow for a corresponding depth of the new seal. Wipe out the seal bore in the block with shop rag effectively so that no oil and dirt will be present. Apply oil to the outer periphery of the TS and place it over the crankshaft's end where the lip of the TS should be directed toward the engine. If ever possible to redo this, use seal installation tool to push the new seal back into place; otherwise such a large socket, a section of pipe or blunt tool would have to carefully hammer the new seal into the seal bore until it is flush with the rear cover. Last but not the least, the driveplate should be fitted, and then the transmission could be put into the car.