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

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.

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

In 1979, the company was founded with Pete's Performance, which was a small speed workshop. It began by building engines for customers as a hobby, and it has now grown to include selling, assembling, manufacturing and racing high performance engine parts. Over the years, the company has grown into a worldwide high performance powerhouse. Growing from a one-man bricks-and-mortar business; to now a supply chain in which entails more than 400+ people all across the world. Today, Pete's Performance has evolved into the internationally known Speedmaster: which has distribution centres and offices is Sydney, Los Angeles and Shanghai.