GM 10.5" 14 Bolt Axle Parts
Rear | Standard Rotation | Low Carrier | 30 Spline Shafts
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The GM 14 bolt axle with 4.10 and down carrier and 30 spline axle shafts is an extremely popular and desirable axle. It has been used by GM since the early 1970s and is available in numerous configurations. All of the parts listed on this page have been verified to fit this axle.
Axle Variations
- Rear GM 14 Bolt SRW (Full-Float)
- Rear GM 14 Bolt DRW (Full-Float)
Minor and Master Overhaul Kits
When servicing an axle or installing new gears or a new differential, it is a good idea to replace the internal seals, bearings, and any parts that get damaged during disassembly. These minor and master install kits include all of the high quality parts you need.
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Ring and Pinion Gears
If you are changing tire size or want to improve the mileage or towing capability of your vehicle, then you'll want to change your axle's gear ratio. For help choosing the correct ratio, see the Crawlpedia Gear Ratio Guide. |
Note: The GM 10.5" 14 Bolt axle has a 4.10/4.56 carrier break. To run 4.56 and higher gears on the 4.10 and down carrier, you will need to use "thick" gears. To learn more, see Thick Gears and Carrier Breaks.
GM 14 Bolt axles with 4.56 and up high carriers have far fewer gear options so we recommend sticking with a 4.10 and down differential carrier.
Learn More About Ring and Pinion Gears
Differentials and Lockers
The best thing you can do to improve the traction of your vehicle is to install a differential locker or limited slip differential. For more information on each type of differential, click on the links below. |
These differentials will work with the original gears in your axle as well as any of the gears listed in the section above. If you are changing your gear ratio, please see the gear section above first.
Learn More About Differential Lockers
Differential Locker Comparison
Axle Shafts
Replace your broken or worn out axle shafts with stock replacements or upgrade to high performance chrome-moly axle shafts to handle more power and larger tires. |
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Note: GM 14 Bolt axles use various length axle shafts. You will need to either measure your existing shafts to order the proper length or order a set that can be cut to size.
Learn More About Axle Shafts
Axle Trusses
Beef up your GM 14 Bolt axle housing with a precision cut and bent axle truss to handle larger tires and severe off-road abuse without flexing, bending, or breaking your axle. |
Tabs and Brackets
Converting to a 4-link suspension requires new shock mounts, link mounts, gussets, and tabs. Save yourself time, money and frustration with high quality, pre-fabricated, precision fit brackets. |
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Learn More About Axle Brackets and Tabs
Differential Covers and Guards
Protect your differential with a heavy duty differential cover or bring down your differential temperatures with a high capacity finned cover for maximum heat dissipation. |
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Learn More About Differential Covers
Differential Cover Gaskets
Red High-Temp RTV Silicone (available at your local auto parts store) is the most common way to seal the differential cover on a GM 10.5" axle, however, several aftermarket manufacturers now offer reusable gaskets that are much cleaner. |
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Learn More About Differential Gaskets
Gear Oil
GM recommends 80w90 mineral oil, however, we recommend 75w90 full-synthetic gear oil for all GM 14 Bolt applications (plus a traction modifier for differentials that require it). |
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Note: The GM 14 Bolt axle takes 3.6 quarts of oil. |
Learn More About Gear Oil
Pinion Yokes
It is not common to need to replace a pinion yoke but in high horsepower applications, or if your driveshaft has been upgraded to larger u-joints, you may need to purchase a stronger and/or larger yoke. |
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This page contains a list of parts compatible with the GM 10.5" 14 Bolt axle configuration listed at the top of this page. For a different axle or configuration, use our Axle Finder.
The parts listed on this page have been confirmed to fit this axle configuration, however, please make sure to read all of the notes that we have listed as there may be exceptions, additional parts needed, and/or axle modifications required.
For some upgrades you may need to find parts listed on a different axle configuration page. In those cases, we have provided instructions and links to take you to the appropriate page.
The parts listed on this page have been confirmed to fit this axle configuration, however, please make sure to read all of the notes that we have listed as there may be exceptions, additional parts needed, and/or axle modifications required.
For some upgrades you may need to find parts listed on a different axle configuration page. In those cases, we have provided instructions and links to take you to the appropriate page.
For help choosing the right parts for your application, see these helpful resources:
If you can't find the information you need, please contact one of our Partners or feel free to Contact Us directly.
If you can't find the information you need, please contact one of our Partners or feel free to Contact Us directly.
The Following GM 10.5" Axle RPO Codes Are Compatible With Parts On This Page:
For more information on BOM numbers see the Crawlpedia GM RPO Axle Code Guide
| GU6 | Low (4.10-) | 3.42 |
| GT4 | Low (4.10-) | 3.73 |
| GT5 | Low (4.10-) | 4.10 |
For more information on BOM numbers see the Crawlpedia GM RPO Axle Code Guide