# Fleece Performance 01-13 GM Duramax 6.6L AlliLocker - Allison Torque Converter Controller

Control your torque converter from the palm of your hand with the AlliLocker(tm) from Fleece Performance Engineering. The AlliLocker(tm) is 100% code free and allows you to bypass the TCM to lock/unlock the torque converter on demand. Turn the bypass switch off, and the TCM regains control of the torque converter clutch. WARNING: This product is intended for closed course race use only. Do NOT use on public roadways. WARNING: Always disengage the bypass switch and unlatch the lock switch when not in use.

This Part Fits:

Year

Make

Model

Submodel

2001-2005

Chevrolet

Silverado 2500 HD

Base

2015-2016

Chevrolet

Silverado 2500 HD

High Country

2001-2006

Chevrolet

Silverado 2500 HD

LS

2001-2016

Chevrolet

Silverado 2500 HD

LT

2007-2016

Chevrolet

Silverado 2500 HD

LTZ

2004-2016

Chevrolet

Silverado 2500 HD

WT

2007

Chevrolet

Silverado 2500 HD Classic

LS

2007

Chevrolet

Silverado 2500 HD Classic

LT

2007

Chevrolet

Silverado 2500 HD Classic

WT

2001-2005

Chevrolet

Silverado 3500

Base

2001-2006

Chevrolet

Silverado 3500

LS

2001-2006

Chevrolet

Silverado 3500

LT

2004,2006

Chevrolet

Silverado 3500

WT

2007

Chevrolet

Silverado 3500 Classic

LS

2007

Chevrolet

Silverado 3500 Classic

LT

2007

Chevrolet

Silverado 3500 Classic

WT

2015-2016

Chevrolet

Silverado 3500 HD

High Country

2007-2016

Chevrolet

Silverado 3500 HD

LT

2007-2016

Chevrolet

Silverado 3500 HD

LTZ

2007-2016

Chevrolet

Silverado 3500 HD

WT

2002-2005,2015-2016

GMC

Sierra 2500 HD

Base

2011-2016

GMC

Sierra 2500 HD

Denali

2001-2002,2006

GMC

Sierra 2500 HD

SL

2001-2016

GMC

Sierra 2500 HD

SLE

2001-2016

GMC

Sierra 2500 HD

SLT

2003-2014

GMC

Sierra 2500 HD

WT

2007

GMC

Sierra 2500 HD Classic

SL

2007

GMC

Sierra 2500 HD Classic

SLE

2007

GMC

Sierra 2500 HD Classic

SLT

2007

GMC

Sierra 2500 HD Classic

WT

2002-2005

GMC

Sierra 3500

Base

2001-2002,2006

GMC

Sierra 3500

SL

2001-2006

GMC

Sierra 3500

SLE

2001-2006

GMC

Sierra 3500

SLT

2004-2006

GMC

Sierra 3500

WT

2007

GMC

Sierra 3500 Classic

SL

2007

GMC

Sierra 3500 Classic

SLE

2007

GMC

Sierra 3500 Classic

SLT

2007

GMC

Sierra 3500 Classic

WT

2015-2016

GMC

Sierra 3500 HD

Base

2011-2016

GMC

Sierra 3500 HD

Denali

2007-2016

GMC

Sierra 3500 HD

SLE

2007-2016

GMC

Sierra 3500 HD

SLT

2007-2014

GMC

Sierra 3500 HD

WT

## Details

- **Price:** 269.74 CAD
- **Vendor:** Fleece Performance
- **Type:** Programmer Accessories

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 269.74 CAD | In stock |

## Images

- Photo - Primary
- Photo - Primary
- Photo - Primary
- Photo - Primary
- User 1
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- Logo Image

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/fleece-performance-01-13-gm-duramax-6-6l-allilocker-allison-torque-converter-controller)
> Updated: 2026-06-27