Merchant Automotive Maximum Allison Transmission Work Series DIY Kit, LML | 2011 - 2016

 LML Work Series Transmission Kit
Fits 2011–2016 GM LML Duramax with Allison 1000 6-Speed

Strengthen and refresh your 2011–2016 LML Duramax with the Work Series Transmission Kit, built around the robust Allison 1000 6-speed platform. This kit is engineered to handle the demands of daily use, towing, and mild performance upgrades — providing the reliability and shift quality you expect from a professionally built transmission.

Whether you're replacing a worn-out stock unit or reinforcing your drivetrain for increased power, this kit delivers a proven, balanced upgrade path. It’s the same setup we trust in our shop for real-world builds and heavy-use applications.

Kit Highlights

• Direct fit for 2011–2016 LML Duramax with Allison 1000 6-speed
• Ideal for stock and mildly modified trucks
• OE-style friction and steel modules for consistent, reliable performance
• Heavy-duty bearing and bushing replacements for extended service life
• Merchant Automotive deep pan with filter lock system
• Supports improved shift quality and transmission durability
• Includes valve body upgrades 

Kit Contents

Transmission Internals

• Allison T2 Bearing
• Allison 1000 T3–T5 Bearing
• Allison T4 Bearing
• Allison 1000 Front Pump Bushing
• Allison Stator Support Bushing
• Allison 1000 T1 & T6 Bearing x2
• Allison T5 Bearing
• Transfer Case Adapter Gasket
• Allison 6-Speed Overhaul Kit
• Pipe Thread Sealant Tape 

Clutch Packs

• Alto OE Replacement Friction Module (Contains all Frictions)
• Alto OE Replacement Steel Module (Contains all Steels)
• C3/C4 Steel
• Allison 1000 P1 Drive Flange

Upgrades & Components

• Allison 1000 Deep Pan Kit with Merchant Automotive Deep Filter Lock
• PTO Billet Side Cover, Work Series x2
• Allison Pressure Switch Assembly
• Valve Body Kit 
• Allison 1000 Pass-Through Connector Body & O-Ring
• Transmission Pressure Regulator Spring Service Tool

Engineered for real work — the Work Series Transmission Kit gives your LML Duramax the confidence to handle added torque, heavier loads, and long miles with reliable shifting and solid performance.