Fully tested and VIN-programmed OEM TCM for the 2008 GMC Sierra 6.6L transmission. Bench-tested, calibrated, and ready to install — no dealer programming required.

Fully tested and VIN-programmed OEM TCM for the 2008 GMC Sierra 6.2L transmission. Bench-tested, calibrated, and ready to install — no dealer programming required.

Fully tested and VIN-programmed OEM TCM for the 2008 GMC Sierra 4.8L transmission. Bench-tested, calibrated, and ready to install — no dealer programming required.

Fully tested and VIN-programmed OEM TCM for the 2008 GMC Sierra 4.3L transmission. Bench-tested, calibrated, and ready to install — no dealer programming required.