GM 10.5" 14 Bolt Axle Parts
Rear | Standard Rotation | High Carrier | 30 Spline Shafts
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The GM 14 bolt axle with 4.56 and up carrier and 30 spline axle shafts is a very popular and desirable axle (although, the lower carrier offers far more gear and locker options). 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. |
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The GM 14 Bolt axle with 4.56 and up carrier has very few available gear options so we highly recommend changing to a 4.10 and down differential carrier. To do this, you will need:
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. |
The GM 14 Bolt axle with 4.56 and up carrier has very few available locker options so we highly recommend changing to a 4.10 and down differential carrier. To do this, you will need:
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
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. |
Learn More About Differential Covers
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Differential Cover Gaskets
Red High-Temp RTV Silicone is the most common way to seal the differential cover on a GM 10.5" axle, however, several aftermarket manufacturers now offer heavy duty, reusable gaskets that are much cleaner. |
Learn More About Differential Gaskets
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Gear Oil
GM recommends 80w90 mineral oil, however, we recommend 75w90 full-synthetic gear oil for all GM 14 Bolt applications. For racing use, or extened high temperature applications, we recommend 75w140 gear lube. For limited slip differentials, a traction modifier may be required. |
Note: The GM 14 Bolt axle takes 3.6 quarts of oil. |
Learn More About Gear Oil
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