Speedmaster®

GM 8.5" 8.6" 10 Bolt 30 Spline TorqueWorm LSD Limited Slip Differential

US $676.50
Single Points Earn 677 Points

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MPN PCE204.1025 UPC840136515159

Product Information

Specs

Brand:Speedmaster
Part Number:PCE204.1025
Part Type:Differential Carrier
Aftermarket Carrier Style:Limited slip
Cover Bolts:10
Axle Shaft Spline Quantity:30
Manufacturer of Axle:GM / Speedmaster
Carrier Material:Steel
Quantity:Sold individually.
Notes:Highest gear ratio: 5.38, Lowest Gear Ratio: 2.73

Description

The GM 8.5" 10 Bolt axle, also known as the GM 8.6" axle or GM 10-Bolt, is available in many front and rear axle applications including both solid axle and IFS / IRS configurations. While the GM 8.5" axle features an 8.5" diameter ring gear and the GM 8.6" axle uses a slightly larger 8.6" diameter ring gear, almost everything within the axles is completely interchangeable.


Vehicle Applications:

1991-1996 Caprice
1994-1996 Impala SS
1988-1998 Chevy 1/2 Ton Pickup Silverado Non HD
1988-1998 GMC 1/2 Ton Pickup Sierra Non HD
1989-1991 Chevy K5 Blazer Front Differential
1989-1991 Chevy Suburban Front Differential
1989-1991 GMC K5 Jimmy Front Differential
1992-1999 Chevy Tahoe
1992-1999 GMC Yukon
1992-1999 GMC Denali
1988-1999 Chevy Suburban 1500
2002-2007 Cadillac Escalade
2002-2007 Cadillac Escalade EXT
2002-2007 GMC Yukon Denali
2000-2007 Chevy Suburban 1500
2000-2006 Chevy Tahoe
2000-2007 GMC Yukon XL 1500
1999-2007 GMC Sierra 1500 (not 1500HD)
1999-2007 Chevy Silverado 1500 (not 1500HD)
2001-2008 Chevy Avalanche 1500
2002-2006 Chevy Trailblazer EXT
2002-2006 GMC Envoy XL
2005-2006 GMC Envoy Denali XL
2004-2008 Buick Rainier w/ 5.3L
2003-2008 Isuzu Ascender w/ 5.3L
2005-2008 Saab 9-7X w/ 5.3L
1994-2003 Chevy S10 4x4 Pickup w/ ZR2 Package
1994-2003 GMC Sonoma 4x4 Pickup w/ Highrider package
1998-2005 Chevy S10 Blazer w/ ZR2 Package

Warranty Information

12-Month Limited Worldwide Warranty

Prop 65 Warning

This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Installation Guide

Our AI assistant generates a step-by-step guide for this product — covering installation, maintenance, and troubleshooting.

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This AI-generated guide is for general reference only and does not constitute official Speedmaster product documentation. Always verify fitment, torque specifications, and safety requirements before installation.