Here's a general procedure. Consult a repair manual specific to your Blazer's engine and transmission for precise details and torque specifications. The process can vary slightly depending on the transmission type (e.g., 4L60E, 700R4).
Tools You'll Need:
* Socket wrench and ratchet: The size will depend on your torque converter bolts – likely a 7/16" or ½" drive.
* Torque wrench: Crucial for tightening the bolts correctly after reinstallation.
* Transmission jack: Essential for supporting the transmission. Improper support can cause damage.
* Drain pan: To catch transmission fluid.
* Gloves: To keep your hands clean.
* Wrench or socket for the flexplate bolts (if access is difficult): You might need to loosen or remove these slightly to gain better access to the torque converter bolts.
* Possibly a long extension and universal joint: Access to the bolts can be tight.
* Shop rags: To clean up spills.
Procedure:
1. Disconnect the battery: This prevents accidental electrical shorts.
2. Drain the transmission fluid: This is crucial to minimize mess. Locate the transmission drain plug (usually on the bottom of the transmission) and drain the fluid into a suitable pan.
3. Support the transmission: Use a transmission jack to safely support the transmission. This is vital to prevent it from falling.
4. Remove the transmission from the engine: This is a significant undertaking and often involves disconnecting various linkages, cooling lines, and possibly the driveshaft. Refer to your repair manual for detailed instructions. This step usually requires removing the bellhousing bolts.
5. Access the torque converter bolts: Once the transmission is separated from the engine, you'll see the torque converter bolts. They are typically on the back of the torque converter.
6. Remove the torque converter bolts: Use your socket wrench and ratchet to carefully remove these bolts. They may be stubborn; use penetrating oil if needed. Keep track of the bolts and their positions.
7. Remove the torque converter: With the bolts removed, the torque converter should be able to slide out. It may require some gentle coaxing. Be careful not to damage the converter or the transmission.
Reinstallation (Reverse order):
1. Install the torque converter: Carefully align the torque converter with the transmission input shaft.
2. Install the torque converter bolts: Install the bolts and tighten them *slightly*.
3. Install the transmission: Carefully lower the transmission onto the engine and reinstall all necessary connections.
4. Tighten the torque converter bolts: Use your torque wrench to tighten the torque converter bolts to the *manufacturer's specified torque*. This is extremely important to prevent leaks and damage.
5. Refill the transmission with the correct fluid: Check your owner's manual for the proper type and amount of transmission fluid.
6. Reconnect the battery:
Important Notes:
* Consult a repair manual: This is not a complete guide. A repair manual specific to your 1996 Chevy Blazer is essential.
* Professional help: If you're uncomfortable with this procedure, it's best to take your vehicle to a qualified mechanic. Improper removal or installation can severely damage your transmission.
* Safety first: Take all necessary precautions to avoid injury.
This process can be complex and labor-intensive. Again, prioritize safety and consult your vehicle's repair manual before proceeding.
