GM Chevrolet 4L60 700-R4 Rebuild ATSG Tech Manual 1987-1993 120 pages Standard Paperback Book Design (not pocket guide) Start your rebuild here... This is a very well illustrated manual with valuable information on general description and the procedures necessary to repair, overhaul, or service the 4L60/700-R4 automatic overdrive transmission. It is extremely easy to follow and has useful illustrations. Start your rebuild out right with the information this manual provides it will guarantee a successful rebuild! Introduction: This transmission is a fully automatic unit consisting of a 3 element torque converter wit the addition of a converter clutch. Five multiple disc clutch packs, one roller clutch, on sprag and on band provide the friction elements the required to obtain the desired function of the planetary gear set. The combination of these elements provides four forward speeds with 4th gear being over drive, and reverse. Changing of the gear rations is fully automatic in relation to vehicle speed and engine torque. Vehicle speed and engine torque signals are fed to the transmission to provide the proper gear ration for maximum efficiency and performance at all throttle openings.