GMC 2500 HD Duramax Spindle
This replacement spindle is built for GMC Sierra 2500 HD trucks equipped with the AAM 11.5″ full-floating rear axle.
This GMC 2500 HD Duramax replacement spindle supports proper bearing alignment and smooth wheel-end operation under load, making it ideal for fleet rebuilds, hub replacements, or preventative maintenance.
Sold as a spindle-only unit unless otherwise noted, it’s built to handle the same demanding workloads that GMC’s HD trucks are known for. Before purchasing this spindle, please verify the product dimensions provided below.
Product Dimensions: Inner Bearing ID: 57.15mm, Outer Bearing ID: 50.8mm, Seal ID: 72.31mm, Lock Nut: 50.8mm
WATCH: Step-by-Step Pickup Truck Spindle Removal/Installation
| Type: | Pickup Truck |
| Recommended Fit For: | Heavy-Duty Pickup |
| Weight: | 6 lbs |
| Warranty: | 1 year limited warranty |
| Compatible Parts: | Inner Bearing: 387A / GM 15042155 / RW20-08 / NP910345, Outer Bearing: LM104949 / GM 15042154 / RW20-07 / NP145100, Seal: SL260002 / 710568 / 15823962 |
| Dimensions: | Inner Bearing ID: 57.15mm, Outer Bearing ID: 50.8mm, Seal ID: 72.31mm, Lock Nut: 50.8mm |
Pickup Truck Spindle Installation – Full Demonstration
Frequently Asked Questions
Can I replace a spindle without replacing bearings or hubs?
Yes, in some cases you can replace a spindle without changing the bearings or hubs, but it’s important to inspect them carefully. Worn or damaged bearings, seals, or hubs can compromise the performance and safety of the new spindle, so replacement is recommended if any signs of wear are present. The best scenario would be finding the nearest facility for axle spindle replacement.
How much does it cost to replace a damaged spindle on a pickup truck?
Replacing a rear axle spindle on a pickup truck usually costs $700 to $1,000+. The final cost of the spindle replacement depends on several factors, including the number of technicians involved, the number of hours, and whether it is a heavy-duty or light-duty pickup truck. Costs further increase if bearings, seals, or the hub are extensively damaged.
How can I check if the spindle on my pickup truck is worn or damaged?
Common signs of a damaged spindle include uneven tire wear, leaking grease, or wheel wobble. Another indicator is unusual sounds, including vibrations or clunky noises. You may also notice excessive heat around the wheel hub, signaling less lubrication. To prevent premature failure, schedule regular axle spindle maintenance and cleaning.
