Transgo 4R100/E4OD TUGGER REPROGRAMMING KIT 4R100-HD2
FITS: 89-04 E4OD, 4R100 Trucks & Vans 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/lubrication, better converter feed & capacity. NOTICE: This kit requires removal of the transmission for installation of the internal parts.