The TREMEC TR-4050 is a 5-speed manual transmission for longitudinal engine rear wheel drive trucks. It includes one overdrive gear and a light-weight aluminum housing. It is manufactured by Transmission Technologies Corporation. New 4wd TR-4050 units are currently available in the United States through any Authorized Tremec Distributor. Specifications for 4wd model TDET17341: * Ratios: 6.16, 3.11, 1.71, 1.00, .76 Rev. 6.03 * 600 LB-FT Rated * Chrysler/Jeep Transfer case bolt circle with 23 spline output shaft * Oil Capacity - 3.67 QT * Weighs 164 lbs * 19.5" overall length * .590" GM pilot diameter with a .750" pilot on the optional Mopar input shaft * 1.125" Input shaft diameter, 10 spline, GM/Mopar lengths available (en)