Drivetrain› Differentials and Rear-End Components

AAM

4.10 Ring and Pinion Gear Set

$400.00

SKU: 40070463

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The AAM 40070463 is an OE ring and pinion gear set designed for GM 10.5-inch, 14-bolt rear ends. This set features a 4.10 gear ratio and utilizes AAM's innovative "Two-Cut" manufacturing process. This process ensures low tolerances for quiet operation and easier setup in aftermarket applications.

The combination of materials, heat treating, and cut geometry in this gear set provides a lifespan ten times longer than non-OEM ring and pinion sets.
Show original supplier description
The AAM 40070463 is an original equipment (OE) ring and pinion gear set specifically engineered for GM 10.5-inch, 14-bolt rear axle applications. This set provides a 4.10 gear ratio, designed to optimize performance for vehicles requiring this specific specification. AAM's commitment to quality is evident in their "Two-Cut" manufacturing process, which achieves the lowest possible tolerances. This precise manufacturing ensures quiet operation, meeting the demanding standards of OEM customers. Furthermore, the "Two-Cut" design simplifies installation for aftermarket replacement, making it a practical choice for service professionals and enthusiasts alike. The robust combination of advanced materials, rigorous heat treating, and optimized cut geometry contributes to a gear set with a significantly extended service life, reportedly ten times longer than non-OEM alternatives. It is compatible with Chevy and GMC vehicles from 1974 to 2016, and also fits 1973-2018 GM 10.5" Chevy 14 Bolt rearends (with a removable pinion bearing support).

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandAAM
Part Number40070463
CategoryDrivetrain
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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