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Memorial Day Shipping Notice
All orders placed after 3 PM ET on Friday, May 22, 2026 will ship Tuesday, May 26, 2026.
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Instruction Manuals

Here is a quick reference to our most popular guides and manuals: 

Duramax Valve Adustment Guide

Cognito Ball Joint SM Series Upper Control Arm Kit for 2011-2019 GM 2500HD/3500HD 2WD/4WD trucks

Harmonic Balancer Bolt

Transfer Case Pump Upgrade Kit 1998-2007

Transmission Line Repair Kit

LB7 Duramax HIGH IDLE KIT

LLY Duramax HIGH IDLE KIT

Automotive Fluid Analysis Sample Sheet

COMPACT ON-BOARD AIR KIT

AIR OPERATED LOCKING DIFFERENTIAL

 

  

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