TransGo 4R100 / E40D - HD2 "Tugger" Reprogramming Kit

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FEATURES: For Working Trucks; Doubles low clutch holding pressure in “1” for downhill use, high speed pull-into “1”. Handles exhaust brake. Adjusts shift firmness, more cooling/lub rication, better converter feed & capacity. NOTICE: This kit requires removal of the transmission for installation of the internal parts. FITS: 89-04 E4OD, 4R100 Trucks & Vans Free Shipping Show more