1. Introduction
This manual provides essential information for the proper installation, maintenance, and troubleshooting of your SurTrack GM-8136 CV Axle Shaft. The SurTrack GM-8136 is a new manufactured axle designed to meet or exceed OE requirements for various passenger cars and light-duty trucks. It is ABS consolidated for use in both ABS and non-ABS applications.
2. Safety Information
Always prioritize safety when working on vehicles. Failure to follow safety precautions can result in serious injury or damage to the vehicle.
- Wear appropriate personal protective equipment, including safety glasses and gloves.
- Ensure the vehicle is securely supported on jack stands on a level surface before beginning any work. Never rely solely on a jack.
- Disconnect the vehicle's battery to prevent accidental electrical discharge.
- Use the correct tools for each task.
- Be aware of hot engine components and fluids.
- If you are unsure about any step, consult a qualified automotive technician.
3. Package Contents
Upon opening the package, verify that all components are present and undamaged.
- 1 x SurTrack GM-8136 CV Axle Shaft
- Necessary hardware for installation (e.g., axle nut, cotter pin, snap rings, if applicable)
- Grease (pre-packed in CV joints)

Figure 1: SurTrack GM-8136 CV Axle Shaft in its retail packaging. The packaging is red and blue, displaying the 'TrakMotive' and 'SurTrack' brands, along with product information and an image of the axle.
4. Installation Instructions
The following are general steps for replacing a CV axle. Specific procedures may vary depending on your vehicle's make and model. Always refer to your vehicle's service manual for detailed instructions and torque specifications.
- Prepare the Vehicle: Park the vehicle on a level surface, engage the parking brake, and block the rear wheels. Loosen the lug nuts on the wheel where the axle will be replaced. Raise the vehicle using a floor jack and secure it with jack stands. Remove the wheel.
- Access the Axle: Remove the brake caliper and rotor. Disconnect any suspension components that obstruct axle removal, such as the tie rod end, lower ball joint, or sway bar link.
- Remove Axle Nut: Remove the cotter pin and castle nut (if present), then remove the large axle nut securing the CV axle to the wheel hub.
- Separate Axle from Hub: Push the axle shaft inward to separate it from the wheel hub. You may need a specialized tool or a soft-faced hammer to gently tap the end of the axle.
- Remove Axle from Transmission/Transaxle: Carefully pull the axle shaft out of the transmission or transaxle. Be prepared for some transmission fluid to leak out; have a drain pan ready. Some vehicles may require a pry bar to dislodge the axle from its housing.
- Install New Axle: Ensure the splines on the new SurTrack GM-8136 axle are clean. Carefully insert the new axle into the transmission/transaxle, ensuring it seats fully. Then, guide the outer end of the axle through the wheel hub.
- Reassemble Components: Reattach the axle nut and torque it to the vehicle manufacturer's specifications. Reconnect all suspension components, brake rotor, and caliper. Torque all fasteners to specifications.
- Final Steps: Reinstall the wheel and lower the vehicle. Torque the lug nuts to specifications. Check and refill transmission fluid if necessary.
- Test Drive: Perform a short test drive to ensure proper operation and check for any unusual noises or vibrations.
Warning: Improper installation can lead to premature failure of the axle or other vehicle components. If you lack experience, professional installation is highly recommended.
5. Operating Principles
A Constant Velocity (CV) axle shaft transmits power from the vehicle's transmission or transaxle to the wheels, allowing them to rotate at a constant speed regardless of the angle of the suspension. This design accommodates the up-and-down motion of the suspension and the steering angle of the wheels, ensuring smooth power delivery without binding or vibration.
6. Maintenance
The SurTrack GM-8136 CV Axle Shaft is designed for long-term durability with minimal maintenance. However, regular inspection is crucial for identifying potential issues before they become severe.
- Visual Inspection: Periodically inspect the rubber boots on both ends of the CV axle. Look for cracks, tears, or signs of grease leakage. Damaged boots can allow dirt and moisture to enter the CV joint, leading to premature failure.
- Noise Check: Listen for unusual noises, especially when turning or accelerating. A clicking or popping sound during turns often indicates a worn outer CV joint, while a clunking sound during acceleration or deceleration might point to a worn inner CV joint.
- Vibration Check: Feel for vibrations, particularly during acceleration. Excessive vibration can be a symptom of a failing CV axle.
If any issues are detected, it is recommended to have the axle inspected by a qualified technician.
7. Troubleshooting
Common symptoms of a failing CV axle and general troubleshooting advice:
| Symptom | Possible Cause | Action |
|---|---|---|
| Clicking or popping noise when turning | Worn outer CV joint | Inspect outer CV boot for damage. Replace axle if joint is worn. |
| Clunking noise during acceleration/deceleration | Worn inner CV joint | Inspect inner CV boot for damage. Replace axle if joint is worn. |
| Vibration during acceleration | Bent or unbalanced axle shaft, worn inner CV joint | Inspect axle for damage. Replace axle if bent or worn. |
| Grease leaking from boots | Damaged or torn CV boot | Replace boot immediately to prevent joint contamination, or replace entire axle if joint is already compromised. |
If troubleshooting steps do not resolve the issue, or if you are unsure about the diagnosis, seek assistance from a certified mechanic.
8. Specifications
Key specifications for the SurTrack GM-8136 CV Axle Shaft:
- Model: GM-8136
- Manufacturer: SurTrack
- Item Weight: Approximately 19.3 pounds
- Product Dimensions: Approximately 24 x 5.9 x 6.1 inches
- Exterior Finish: Machined
- ABS Compatibility: ABS consolidated for use in both ABS and non-ABS applications

Figure 2: Technical diagram of the GM-8136 CV Axle Shaft, indicating an overall compressed length of 21 3/8 inches, a flange with 6 holes, and 27 splines on the shaft end.
9. Warranty Information
The SurTrack GM-8136 CV Axle Shaft comes with a Limited Lifetime Warranty. This warranty covers defects in materials and workmanship under normal use and service. For specific terms, conditions, and claim procedures, please refer to the official SurTrack warranty documentation or contact SurTrack customer support.
10. Support
For further assistance, technical questions, or warranty claims regarding your SurTrack GM-8136 CV Axle Shaft, please contact SurTrack customer support through their official website or authorized distributors. When contacting support, please have your product model number (GM-8136) and purchase information readily available.