Name: Yukon GM 14-Bolt 10.5" Ring & Pinion Gear Set - 30 Spline
Brand: Yukon Gear & Axle
SKU: YUKYG GM14T-373
Price: 394.0 USD
Availability: InStock

Yukon GM 14-Bolt 10.5" Ring & Pinion Gear Set - 30 Spline

$394.00

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The Yukon Gear GM 14-Bolt 10.5" Ring & Pinion Gear Set is a replacement or ratio-change gear set for GM 10.5" full-float 14-bolt axles. Available in multiple ratios from 3.73 through 5.38, these gear sets give builders options for stock-style replacements, larger tires, deeper crawl gearing, towing, and performance off-road applications.

Yukon ring and pinion gears are manufactured for consistent tooth contact, strength, and quiet operation when properly installed. For off-road builds, choosing the right ratio helps restore usable gearing after increasing tire size and can improve crawl control, acceleration, and drivetrain response. Thin and thick gear options are available in select ratios to work with different GM 14-bolt carrier and locker configurations.

Includes:

(1) Yukon Gear GM 14-Bolt 10.5" Ring Gear
(1) Matching Pinion Gear

Note: Gear ratio and thin/thick configuration vary by selected option.

Specification	Details
Manufacturer	Yukon Gear & Axle
Product Type	Ring & Pinion Gear Set
Axle Platform	GM 14-Bolt
Ring Gear Diameter	10.5"
Axle Type	Full-Float
Available Gear Ratios	3.73, 4.11, 4.56, 4.88, 5.13 & 5.38
Gear Set Type	Thin or Thick - Varies by Ratio
Pinion Spline Count	30
Ring Gear Bolt Count	12
Axle Position	Rear / Custom Applications
Installation Type	Professional Gear Setup Recommended
Manufacturer Warranty	1 Year

Available Gear Ratios

Gear Ratio	Gear Configuration
3.73	Thin
4.11	Thin
4.56	Thin
4.56	Thick
4.88	Thick
5.13	Thick
5.38	Thick

Axle Fitment:

GM 10.5" 14-Bolt full-float axle
30-spline pinion
12-bolt ring gear

Common Applications:

Rock crawlers and rock bouncers
Trail rigs and custom off-road vehicles
GM 14-bolt axle swaps
Heavy-duty trucks
Vehicles being regeared for larger tires
Custom front or rear 14-bolt axle builds

Carrier & Gear Fitment Notes:

Gear ratio alone does not determine compatibility. The carrier or locker being used must match the selected thin or thick gear configuration.
Thick gears allow deeper ratios to be used with compatible 4.10-and-down carrier or locker configurations.
The 4.56 ratio is available in both thin and thick configurations. Select the version that matches your carrier or locker.
Verify axle platform, carrier or locker, gear ratio, and thin/thick configuration before ordering.
Ring and pinion installation requires proper pinion depth, bearing preload, backlash, and gear tooth contact pattern setup.
A master installation kit is recommended when installing new gears unless the required bearings, races, seals, shims, and hardware are being sourced separately.

What is the difference between thin and thick GM 14-bolt gears?

Thick gears change the position of the ring gear mounting surface so a deeper gear ratio can be used with a compatible higher-ratio carrier or locker. This can allow builders to change to lower gearing without replacing an otherwise compatible carrier or locker.

Why is the 4.56 ratio available in both thin and thick versions?

The correct 4.56 gear depends on the carrier or locker being used. Both versions provide the same 4.56:1 final gear ratio, but the ring gear thickness is different to match different carrier configurations. Verify your carrier or locker before selecting the gear set.

What gear ratio should I use with larger tires?

Larger tires effectively make the overall gearing taller. Moving to a numerically higher axle ratio can restore acceleration, low-speed control, and usable engine RPM. The best ratio depends on tire diameter, transmission gearing, transfer case ratio, engine combination, vehicle weight, and intended use.

Do I need an installation kit when replacing my ring and pinion?

A master installation kit is recommended for most gear changes because proper setup depends on the condition and adjustment of the pinion bearings, carrier bearings, races, seals, shims, and related hardware. Reusing worn components can affect gear setup and service life.

Can I install a GM 14-bolt ring and pinion myself?

Ring and pinion installation requires specialized measuring tools and experience setting pinion depth, bearing preload, backlash, and tooth contact pattern. Incorrect setup can create gear noise, excessive heat, premature wear, or gear failure, so professional installation is recommended unless you are experienced with differential setup.

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Yukon GM 14-Bolt 10.5" Ring & Pinion Gear Set - 30 Spline