Drivetrain› Differentials and Rear-End Components

US Powertrain

8.5/8.6 Differential Carrier, 30 Spline

$395.00

SKU: K740057

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 US Powertrain differential carrier is a new OEM replacement for GM 8.5/8.6 limited slip differentials with 30 spline count. It features a heavy-duty 4-spring clutch plate and OEM brand bearings.
Show original supplier description
The US Powertrain differential carrier is a new, OEM replacement for GM 8.5/8.6 limited slip (posi) differentials, featuring a 30 spline count and designed for rear axle applications. This unit comes with OEM brand bearings and a heavy-duty 4-spring clutch plate that allows for adjustment of side thrust if necessary. It is assembled in the USA and offers a 90-month warranty. This differential carrier is constructed from steel and is identified as an Eaton Style Limited Slip type. It requires a 10-bolt cover for installation. Before ordering, it is crucial to verify the ring gear size and spline count for your specific application to ensure compatibility. This differential carrier is compatible with a wide range of GM vehicles from 1999 to 2018, including various Chevrolet Silverado, Chevrolet Suburban, Chevrolet Tahoe, Cadillac Escalade (including ESV and EXT models), and GMC Sierra and Yukon (including XL models) 1500 series trucks and SUVs. Please consult the detailed fitment list for exact year, model, and submodel compatibility.

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

BrandUS Powertrain
Part NumberK740057
CategoryDrivetrain
5,000+ Trusted brands
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(760) 282-4645 hello@motormia.co

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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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