Product Overview
The GM THM 4T60 (440-T4) Transaxle found in many 1984 to 1993 GM domestic vehicles. This TechTran Manual covers assembly, dis-assembly, diagnosis, and troubleshooting. Note: There have been many engineering changes in this transmission since its introduction. ATSG also has available an "Update Handbook Volume I" and an which includes "Update Handbook Volume II" which includes the many changes and is required along with this manual for a proper overhaul or repair.