What steps must be taken to remove and reinstall the Transmission Assembly and torque converter as a single assembly on Chevrolet Trailblazer?

The transmission and torque converter has to be pulled out together and not separately, in order to prevent damage to the converter drive plate, pump bushing and oil seal. First, loosen the negative battery terminal, then safely lift the car on jack stands, as well as if the car is equipped with skid plates, remove them. The exhaust components that have to be removed are the EVAP canister and fuel tank heat shield; it is also necessary to remove the fluid filler tube and drain the transmission fluid. Place the car on a jack and put some wooden on the oil pan of the engine. Supply the transmission with a jack which has been manufactured for the above purpose, and right them with safety chains. The cross member is detached at the transmission mount where the nuts holding it down to the cross member are to be removed, thereby lifting the transmission slightly to free the cross member. Pull up the front end to easily access the top and sides of the engine and the transmission. For 4WD models you should disassemble the transfercase, and for V6 and V8 models the intake manifold is removeable. Remove the shift cable and the vent hose and if equipped take off the transmission heat shield as well. On the left side of the transmission remove the Park/Neutral position switch electrical connector and the main electrical connector and release the transmission wiring harness from retainers. Now unbolt the fuel line support bracket, take out the inspection plug provided at the bottom of bell housing and mark the position of the torque converter with respect to the drive plate. Depending on the model you are working on, you need to; unlock the starter and turn the crankshaft to be able to reach the torque converter-to-drive plate bolts. Remove the shroud to gain access to the transmission cooler lines and cap the end of those lines so that there is no leakage. Safety chain the transmission to the jack and then, unbolt the transmission from the engine. Lower the engine and transmission further to pull out the fill/dipstick tube bracket bolt and then the tube out. Tighten jaws of locking pliers on the bell housing case so that torque converter cannot come out, shift the transmission back to ease its withdrawal from the dowel pins of the engine block. For installation make sure the torque converter is locked in the pump, use transmission fluid on the rear hub if it was removed. Place the torque converter over the front input shaft with this requirement that it engages in stages as the shaft is rotated backward and forward. Reinstall the locking pliers to hold the converter in position now lift the transmission into position. Place the torque converter with the holes that are named before into the drive plate's holes, so the marks made are in alignment. Slide the transmission forward until the dowel pins and torque converter come in contact and there should not be any spaces. Place the transmission dipstick tube and cover it before installing the transmission-to-engine bolts and turning the nuts tightly. Lift the rear on the transmission and bolt in the cross member and get rid of the jacks. The torque converter-to-drive plate bolts should be installed and tightened until snug with the understanding that all the bolts are supposed to be engaged before any of them is tightened down. New retaining rings have to be put on the quick-connect fittings, the transmission fluid cooler lines are fastened, and the electrical connectors connected; the heat shield has to be attached. Torque converter inspection cover is to be connected, along with the shift cable to the transfer case if it has been removed. Reinstall the drive shafts, centre the shift cable, and put back in any of the exhaust system components that were disassembled. Last but not the least, take off the jack stands; let the car down; pour in the transmission with the recommended type of fluid, start the engine and look for any signs of leakage.

Genuine Chevrolet Trailblazer Transmission Assembly

Trans Assembly

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39 Transmission Assemblies found

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Chevrolet Trailblazer Auto Transmission (Goodwrench Remanufacture)
Part Number: 24229175
$2988.26 MSRP: $3363.75
You Save: $375.49 (12%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: TRANSMISSION, Manual(5 Speed); Transmission
- Replaces: 24224239
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 8 Cyl 5.3L
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Chevrolet Trailblazer Transmission Asm,Auto (1Kpd Goodwrench Remanufacture)
Part Number: 17803883
$2972.79 MSRP: $3346.25
You Save: $373.46 (12%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: TRANSMISSION, Automatic; Transmission
- Replaces: 17804241, 17804043, 17804050, 19257135, 24247303, 19209781
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009 Chevrolet Trailblazer | 4 DOOR | 8 Cyl 5.3L
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Chevrolet Trailblazer Transmission Asm,Auto 7Tdd (Goodwrench Remanufacture)
Part Number: 89037509
$3042.40 MSRP: $3425.00
You Save: $382.60 (12%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Transmission, Manual(6, Speed); Transmission
- Replaces: 12491909, 12491363, 24230212, 89037482
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2007 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L
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Chevrolet Trailblazer Transmission, Auto(Goodwrench Remanufacture) (4Kcd)
Part Number: 12491894
$2988.26 MSRP: $3363.75
You Save: $375.49 (12%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: TRANSMISSION, Manual(5 Speed); Transmission
- Replaces: 24227578
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 8 Cyl 5.3L
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Chevrolet Trailblazer Transmission, Auto (Goodwrench Remanufacture) (6Kcd)
Part Number: 89037492
$3042.40 MSRP: $3425.00
You Save: $382.60 (12%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: TRANSMISSION, Manual(5 Speed); Transmission
- Replaces: 24230223, 12491917
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 8 Cyl 5.3L
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Chevrolet Trailblazer TRANSMISSION ASM-AUTO (21GHN)
Part Number: 24044596
$4619.76 MSRP: $5130.94
You Save: $511.18 (10%)
ADD TO CART
Product Specifications
- Other Name: Transaxle
- Replaced by: 24066727
- Replaces: 24285479
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2024 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED | 3 Cyl 1.2L
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Chevrolet Trailblazer Transmission Asm,Auto 7Kld (Goodwrench Remanufacture)
Part Number: 89037517
$3042.40 MSRP: $3425.00
You Save: $382.60 (12%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: TRANSMISSION, Automatic; Transmission
- Replaces: 12491496
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2007 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 8 Cyl 5.3L
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Chevrolet Trailblazer TRANSAXLE ASM-AUTO (21GBN)
Part Number: 24044597
$3269.58 MSRP: $3603.60
You Save: $334.02 (10%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Transaxle
- Replaced by: 24066728
- Replaces: 24273441
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021-2024 Chevrolet Trailblazer | 4 DOOR EXT, LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.3L
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Chevrolet Trailblazer Transmission Asm,Auto (8Kld) (Goodwrench Remanufacture)
Part Number: 17803781
$2986.05 MSRP: $3361.25
You Save: $375.20 (12%)
ADD TO CART
Product Specifications
- Other Name: TRANSMISSION, Manual(5 Speed); Transmission
- Replaces: 12491538
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008 Chevrolet Trailblazer | 4 DOOR | 8 Cyl 5.3L
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Chevrolet Trailblazer Transmission Asm,Auto (6Tkd Goodwrench Remanufacture)
Part Number: 89037484
$2749.58 MSRP: $3093.75
You Save: $344.17 (12%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Transmission, Manual(6, Speed); Transmission
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006 Chevrolet Trailblazer | 4 DOOR | 8 Cyl 6.0L
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Chevrolet Trailblazer Transmission, Auto (Goodwrench Remanufacture) (4Tdd)
Part Number: 12491883
$2808.38 MSRP: $3160.28
You Save: $351.90 (12%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Transmission, Manual(6, Speed); Transmission
- Replaces: 24227562
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L
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Chevrolet Trailblazer Transmission Asm,Auto 7Sdd (Goodwrench Remanufacture)
Part Number: 89037508
$2868.95 MSRP: $3228.79
You Save: $359.84 (12%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Transmission, Manual(6, Speed); Transmission
- Replaces: 12491362, 89037481
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2007 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L
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Chevrolet Trailblazer Transmission Asm,Auto 4Sdd (Goodwrench Remanufacture)
Part Number: 12491882
$2967.26 MSRP: $3340.00
You Save: $372.74 (12%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Transmission, Manual(6, Speed)
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L
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Chevrolet Trailblazer Transmission Asm,Auto (8Tad) (Goodwrench Remanufacture)
Part Number: 17803780
$2811.61 MSRP: $3163.93
You Save: $352.32 (12%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Transmission, Manual(6, Speed)
- Replaces: 17803944
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008 Chevrolet Trailblazer | 4 DOOR | 6 Cyl 4.2L
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Chevrolet Trailblazer Transmission, Auto (Goodwrench Remanufacture) (2Tdd)
Part Number: 24225949
$2822.67 MSRP: $3176.44
You Save: $353.77 (12%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Transmission, Manual(6, Speed); Transmission
- Replaces: 24221273
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L
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Chevrolet Trailblazer Transmission, Auto (Goodwrench Remanufacture) (3Tdd)
Part Number: 24229164
$2823.19 MSRP: $3177.03
You Save: $353.84 (12%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Transmission, Manual(6, Speed); Transmission
- Replaces: 24224228
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L
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Chevrolet Trailblazer TRANSAXLE ASM-AUTO
Part Number: 24047478
$1747.17 MSRP: $1881.41
You Save: $134.24 (8%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2024 Chevrolet Trailblazer | LEVEL II 4 DOOR EXTENDED, LEVEL III 4DOOR EXTENDED, LEVEL IV 4 DOOR EXTENDED, LEVEL V 4 DOOR EXTENDED | 3 Cyl 1.3L
View related parts
Chevrolet Trailblazer Transmission Asm,Auto (2Sdd) (Goodwrench Remanufacture)
Part Number: 24225948
$2749.58 MSRP: $3093.75
You Save: $344.17 (12%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Transmission, Manual(6, Speed); Transmission
- Replaces: 24221272
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2002 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L
View related parts
Chevrolet Trailblazer Transmission Asm,Auto (3Sdd) (Goodwrench Remanufacture)
Part Number: 24229163
$2994.89 MSRP: $3371.25
You Save: $376.36 (12%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Transmission, Manual(6, Speed); Transmission
- Replaces: 24224227
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L
View related parts
Chevrolet Trailblazer Transmission Asm,Auto (6Skd Goodwrench Remanufacture)
Part Number: 89037483
$2749.58 MSRP: $3093.75
You Save: $344.17 (12%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Transmission, Manual(6, Speed); Transmission
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006 Chevrolet Trailblazer | 4 DOOR | 8 Cyl 6.0L

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Chevrolet Trailblazer Transmission Assembly

The Chevrolet Trailblazer Transmission Assembly converts raw engine torque into forward motion by selecting gear ratios that match the vehicle's speed, load, and terrain. The first few models applied the pioneering hydraulic, planetary automatic known as Hydra-Matic. Over the years, the Trailblazer Transmission Assembly focused on two styles, the traditional torque converter automatic and, in certain trims, a manual transmission. The automatic Transmission Assembly depends on planetary gearsets, operated by fluid pressure under the guidance of a computer module, delivering smooth shifts. It enables the driver to concentrate on steering the vehicle and modulating the throttle. In contrast, the manual version places gear selection into the hands of the driver. It makes use of parallel shafts and sliding gears and is especially gratifying for those who prefer a more engaged driving approach. Both are designed to offer the same result. Apparently, they increase torque for climbing hills, drop engine speed while cruising, and keep a check on fuel usage, giving Chevrolet drivers the confidence to take on all roads. The Trailblazer does not feature a continuously variable or dual-clutch transmission unit like what you find in other platforms; rather, it keeps to familiar layouts that strike a balance between durability and low-stress operation. When fluid leaks from the Transmission Assembly, or if it slips or grinds, further driving of your Chevrolet risks severe damage because once the Transmission Assembly fails, the vehicle simply cannot move. It is essential to every adventure in any Chevrolet.

Each OEM Chevrolet Trailblazer Transmission Assembly we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

Chevrolet Trailblazer Transmission Assembly Parts Questions & Experts Answers

Transmission Asm,Auto (3Sdd) (Goodwrench Remanufacture)
24229163
Q: What steps must be taken to remove and reinstall the Transmission Assembly and torque converter as a single assembly on Chevrolet Trailblazer?
A:
The transmission and torque converter has to be pulled out together and not separately, in order to prevent damage to the converter drive plate, pump bushing and oil seal. First, loosen the negative battery terminal, then safely lift the car on jack stands, as well as if the car is equipped with skid plates, remove them. The exhaust components that have to be removed are the EVAP canister and fuel tank heat shield; it is also necessary to remove the fluid filler tube and drain the transmission fluid. Place the car on a jack and put some wooden on the oil pan of the engine. Supply the transmission with a jack which has been manufactured for the above purpose, and right them with safety chains. The cross member is detached at the transmission mount where the nuts holding it down to the cross member are to be removed, thereby lifting the transmission slightly to free the cross member. Pull up the front end to easily access the top and sides of the engine and the transmission. For 4WD models you should disassemble the transfercase, and for V6 and V8 models the intake manifold is removeable. Remove the shift cable and the vent hose and if equipped take off the transmission heat shield as well. On the left side of the transmission remove the Park/Neutral position switch electrical connector and the main electrical connector and release the transmission wiring harness from retainers. Now unbolt the fuel line support bracket, take out the inspection plug provided at the bottom of bell housing and mark the position of the torque converter with respect to the drive plate. Depending on the model you are working on, you need to; unlock the starter and turn the crankshaft to be able to reach the torque converter-to-drive plate bolts. Remove the shroud to gain access to the transmission cooler lines and cap the end of those lines so that there is no leakage. Safety chain the transmission to the jack and then, unbolt the transmission from the engine. Lower the engine and transmission further to pull out the fill/dipstick tube bracket bolt and then the tube out. Tighten jaws of locking pliers on the bell housing case so that torque converter cannot come out, shift the transmission back to ease its withdrawal from the dowel pins of the engine block. For installation make sure the torque converter is locked in the pump, use transmission fluid on the rear hub if it was removed. Place the torque converter over the front input shaft with this requirement that it engages in stages as the shaft is rotated backward and forward. Reinstall the locking pliers to hold the converter in position now lift the transmission into position. Place the torque converter with the holes that are named before into the drive plate's holes, so the marks made are in alignment. Slide the transmission forward until the dowel pins and torque converter come in contact and there should not be any spaces. Place the transmission dipstick tube and cover it before installing the transmission-to-engine bolts and turning the nuts tightly. Lift the rear on the transmission and bolt in the cross member and get rid of the jacks. The torque converter-to-drive plate bolts should be installed and tightened until snug with the understanding that all the bolts are supposed to be engaged before any of them is tightened down. New retaining rings have to be put on the quick-connect fittings, the transmission fluid cooler lines are fastened, and the electrical connectors connected; the heat shield has to be attached. Torque converter inspection cover is to be connected, along with the shift cable to the transfer case if it has been removed. Reinstall the drive shafts, centre the shift cable, and put back in any of the exhaust system components that were disassembled. Last but not the least, take off the jack stands; let the car down; pour in the transmission with the recommended type of fluid, start the engine and look for any signs of leakage.

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