TransGo Transmission Reprogramming Shift Kit Allison 1000-2000 Allison-11UP*
TRANSGO REPROGRAMMING KIT. Fits Allison 1000, 2000 2011-19. Extension and pump housing gaskets. Unbreakable billet 1-2-3-4 back-feed retainer. Re-engineered TCC regulator valves (2) for both early and late designs.