Description
48RE Transmission Rebuild Process
The 48RE torque converter is tested for leaks, lockup, concentricity, and balance, Upgrades, including billet converter cover with machined mounting pads, surpass OE requirements, thereby eliminating the possibility of front seal leaks, premature bushing wear. and vibration. Diesel and heavy-duty gasoline applications equipped with new 48RE heavy-duty lock-up lining, upgraded valve body includes updated throttle valve, manual valve, 4-spool switch valve, and pressure regulator valve for improved shifting, lubrication, and performance. Valve body is modified to allow torque converter charge in park to increase durability and enhance gear engagements.
Completely remanufactured pump provides consistent internal I pressures, eliminating slipping and delayed engagement. High/Reverse clutch updated to four plates for both gas and diesel applications. Overdrive (OD) direct clutch updated to 10-plate clutch for increased durability. Overdrive (OD) direct clutch updated thrust plate_ Overdrive (OD) planetary assembly upgraded to 5-pinion unit for increased durability. Overdrive (OD) dutch updated to 4-plate clutch for gas applications and 5-plate clutch for diesel applications. Oversize Low/Reverse brake band strut installed to maintain correct band clearance for elimination of drum slippage and ``no-reverse`` condition on. SP-spec 48RE bushings installed as needed to improve internal fluid flow control and pressures. Bushings and machined surfaces polished to mirror-like OE finish of 16 RA or less.