Yukon YY GM12470387 Pinion Yoke 30-Spline Mech 3R for GM 8.5"/8.6" Rear Differen

Regular price: $79.95
Regular price
Sale price: $79.95

Shipping calculated at checkout.

In Stock: 0

Orders by 1pm PST ship same business day

Free Shipping w/3-4 Day Delivery

Authorized Dealer

Fitment Guarantee

30-Day Hassle Free Returns

Product Specification:

SKU:YUKYY GM12470387

MPN: YY GM12470387

UPC: 883584410713

Weight: 3.3 lb

Type: Differential Yokes

Vehicle Fitment

GM 8.5-inch & 8.6-inch Rear Differentials (30-Spline Pinion, 3R U-Joint)
Compatible with numerous Chevrolet, GMC, Buick, Cadillac, Oldsmobile, Pontiac, Hummer, and Saab applications equipped with GM 8.5"/8.6" rear axles.

Fitment Notes

Fits GM 8.5-inch and 8.6-inch rear differentials only.
Requires a 30-spline pinion shaft.
Designed for Mechanics (3R) U-joints with inside snap ring configuration.
Verify axle model, spline count, and U-joint dimensions before ordering.

Features

Direct-fit replacement pinion yoke for GM 8.5" and 8.6" rear differentials.
Manufactured from high-strength steel for durability and long service life.
Triple-lip seal surface design helps improve sealing performance.
Compatible with Mechanics 3R series U-joints.
30-spline internal design for OE-style fitment.
Strap-style U-joint attachment.
Suitable for street, towing, performance, and off-road applications.
Precision-machined to ensure proper driveline alignment and balance.

Specifications

Part Number: YY GM12470387
Brand: Yukon Gear & Axle
Product Type: Rear Differential Pinion Yoke
Position: Rear Differential Pinion
Differential Compatibility: GM 8.5" & 8.6"
Spline Count: 30
U-Joint Series: Mechanics 3R
Snap Ring Span: 2.556 inches
Bearing Cap Diameter: 1.125 inches
Attachment Style: Strap Style
Inside Snap Ring Design

Included Components

1x Yukon Rear Differential Pinion Yoke

Product Description

The Yukon Gear & Axle YY GM12470387 is a premium replacement pinion yoke engineered for GM 8.5-inch and 8.6-inch rear differentials equipped with a 30-spline pinion shaft and Mechanics 3R U-joint. Precision-machined for OE-quality fitment, it restores dependable driveline performance while providing excellent durability for daily driving, towing, performance, and off-road use.

Constructed from high-strength steel and featuring a triple-lip seal surface, this yoke is designed to improve sealing performance and extend component life. Its strap-style mounting, inside snap ring configuration, 2.556-inch snap ring span, and 1.125-inch bearing cap diameter ensure compatibility with the correct GM axle assemblies. Always verify the axle model, spline count, and U-joint series before installation to ensure proper fitment.