Features:
Stage 1 transmission package for LCT1000 6-speed
Designed for improved towing and light performance upgrades
Upgraded clutch packs and valve body modifications
Enhanced torque handling and shift firmness
Maintains drivability with improved durability
Ideal for daily drivers and mild power enhancements
Performance Benefits
The ATS 309-984-4308 Stage 1 Package is a reliable upgrade for GM 8.1L 4WD trucks equipped with the LCT1000 6-speed transmission. This entry-level performance kit boosts shift quality and torque capacity without sacrificing daily drivability. Engineered for trucks that tow frequently or run with mild performance mods, this kit delivers smoother gear transitions and longer transmission life under load.
Fitment:
2006, 2007 GM 2500HD/3500HD 4WD 8.1L Vortec V8 with LCT1000 6-Speed Transmission
Warranty
Covered under ATS Diesel Performance’s standard manufacturer warranty. Refer to ATS for complete warranty information.
Fitment Notes:
Specifically for GM 8.1L 4WD applications with LCT1000 6-speed
Suitable for stock to mildly upgraded engines
Professional installation is recommended
Note: $500 Shipping surcharge will be added at checkout
| Property | Values |
|---|---|
| Year Ranges | 2006-2007 |
| Make | GM |
| Model | |
| Series | 2500HD/3500HD |
| Engine | 8.1L Vortec V8 |
!