GM 4T65E Transmission Superior Forward (Low) Band Servo Return Spring The new #K0112 forward band servo release spring. Fits all 4T65E and was developed to virtually eliminate the neutral to drive bang into gear on take off, that so many of these units experience. IF you need any other parts for your 4T65E Transmission rebuild; Rebuild Kit, Shift Kits, electrical Etc. please see our store; This kit will come with installation directions and illustrations.