Chevy Blazer 4.3L Repair Information

Chevy Blazer 4.3L Rear End Repair Information

Here you can find information regarding repairs to the Chevy Blazer rear end system. These repairs include the rear control arms installation, the rear swaybar information and bolt torque specs, the rear diff fluid change procedures, and the rear end watts system installation. All of these repairs and procedures include in depth details on how to perform the replacement and or repair. They also contain all the detailed torque specs needed for each bolt involved in the repair.

Rear Leaf Spring Installation

The rear suspension of the Chevy Blazer consists of leaf springs and shock absorbers. The leaf springs are held together using a series of mounts and shackles. The front leaf spring hanger mount needs to be tightened down to 89 ft-lbs. While the shackle bolts need to be tightened down to 89 ft-lbs. There is also a centering bolt on the leaf springs which should be tightened down to 37 ft-lbs if removed.

Chevy Blazer Front Leaf Spring Hanger Torque Spec : 89 ft-lbs

Chevy Blazer Shackle Bolts Torque Spec : 89 ft-lbs

Chevy Blazer Leaf Spring Center Pin Torque Spec : 37 ft-lbs

 

Rear Differential Torque Specs

On the Chevy Blazer rear axle the U bolts need to be tightened down to 73 ft-lbs. The ring gear bolts get tightened down to 95 ft-lbs. The rear carrier bearing caps can be tightened down to 80 ft-lbs. The differential drain plug should be tightened down to 24 ft-lbs. While the backing plate to the differential get tightened down to 30 ft-lbs.

Chevy Blazer Rear Axle U-Bolts Torque Specs : 73 ft-lbs

Chevy Blazer Rear End Ring Gear Torque Specs : 95 ft-lbs

Chevy Blazer Rear Carrier Bearing Caps Torque Specs : 80 ft-lbs

Chevy Blazer Rear Differential Drain Plug Torque Specs : 24 ft-lbs

Chevy Blazer Rear Diff Backing Plate Torque Specs : 30 ft-lbs

 

Rear Shocks Installation

To replace the rear shocks on a Chevy Blazer you will need to remove two sets of bolts/nuts located at the bottom and top of the shock. Both of these fasteners can be accessed from underneath the vehicle by jacking it up and removing the wheel. To uninstall the old shock simply just remove both of the fasteners and the part will come out. When installing the new part reverse the procedure and tighten up the lower bolt to 62 ft-lbs and then the upper bolt to 22 ft-lbs.

Chevy Blazer Rear Shock Upper Bolt Torque Specs : 22 ft-lbs

Chevy Blazer Rear Shock Lower Bolt Torque Specs : 62 ft-lbs

 

Rear Stabilizer Bar Installation

The rear stabilizer bar on the Chevy Blazer consists of a series of brackets that hold it to the frame of the vehicle and a couple of endlink nuts that fasten it the the outer side of the car. To remove the swaybar you will need to jack up the front of the vehicle and remove both the endlink nuts as well as the brackets. To install the new swaybar you will need to move it back into the place as the old one and torque the axle sided nuts to 30 ft-lbs and then torque the frame bolts to 37 ft-lbs as well.

Chevy Blazer Rear Stabilizer to Axle Torque Spec : 30 ft-lbs

Chevy Blazer Rear Stabilizer to Frame Torque Spec : 37 ft-lbs

 

---

Rear Leaf Spring Torque Specs
Front Leaf Spring Mount Torque Spec	89 ft-lbs
Leaf Spring Shackle Bolts Torque Spec	89 ft-lbs
Leaf Spring Center Pin Torque Spec	37 ft-lbs
Rear Differential / Axle Torque Specs
Rear Axle U-Bolts Torque Spec	73 ft-lbs
Rear End Ring Gear with E-locker Torque Spec	95 ft-lbs
Rear Carrier Bearing Cap Torque Spec	80 ft-lbs
Rear Differential Drain Plug Torque Spec	24 ft-lbs
Rear Axle Backing Plate Torque Spec	30 ft-lbs
Rear Shock Torque Specs
Rear Shock Upper Bolt Torque Spec	22 ft-lbs
Rear Shock Lower Bolt Torque Spec	62 ft-lbs