Xcalliber Allison P3 Carrier Towing-Sled Pulling Kit

Part# P347A-X / P347B-X

$1,161.05 Includes Free Shipping.

WARNING: Cancer and Reproductive Harm - www.P65Warnings.Ca.Gov

Xcalliber P3 Carrier Towing/Sled Pulling Kit

Fits 2001-2010 Chevy/GMC 2500/3500 HD Allison 1000

*TCM Recalibration using EFI Live is Required*

Part# P347A-X / P347B-X

Recommended for Hauling / Towing / Sled Pulling Applications.


  • Add & Optimize Gearing to the Transmission,
  • Compensate for larger radius tires, less need for differential upgrades
  • Greater Torque with Same Engine Power
  • Reduced Stress on the Engine & Internals
  • Increased Control and Stability when Towing​
  • TCM Recalibration using EFI Live is Required