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.

Axle Overhaul Kits
Learn More About Installation Kits


Crown Race Gears


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.

Ring and Pinion Gears

The GM 14 Bolt axle with 4.56 and up carrier has very few avaialble gear options so we highly recommend changing to a 4.10 and down differential carrier. To do this, you will need:

[ GM 10.5" High Carrier Differentials ] + [ GM 10.5" High Carrier Gears ]


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.

Differential Lockers

The GM 14 Bolt axle with 4.56 and up carrier has very few avaialble locker options so we highly recommend changing to a 4.10 and down differential carrier. To do this, you will need:

[ GM 10.5" High Carrier Differentials ] + [ GM 10.5" High Carrier Gears ]


  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.

Axle Shafts List or advertise your parts here! Click here for details.


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.

Axle Trusses
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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.

Axle Tabs and Brackets List or advertise your parts here! Click here for details.

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.

Axle Trusses

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.

Pinion Yokes List or advertise your parts here! Click here for details.

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).

Pinion Yokes List or advertise your parts here! Click here for details.

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.

Pinion Yokes List or advertise your parts here! Click here for details.
Learn More About Pinion Yokes