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ECS can perform a performance rebuild of your GM Transmission with hardened parts, upgraded syncros, clutch packs, blocker rings, shift forks, Billet servos, heavy duty sprags, etc, to ensure you can put the power to the ground. Also available are SFI Approved Bell housings C5/C6, Deep Sump Aluminum pans, and Transbrakes!!! All Transmission are built in house by our certified GM Technician.

  • Performance Trans Rebuilds – From $2999.