4L60, 4L60E Input Housing Kit with Heavy Duty Input Shaft
This assembly addresses 6 weak areas of the GM 4L60 & 4L60E input housing. Designed to fit 298mm units. See note at bottom of page for 300mm units.

• Input housing with 298mm input shaft assembly.
• PTFE impregnated rear stator support bushing.
• Input drum reinforcement sleeve installed.
• Overrun piston inner seal.
• Overrun piston.
• 3-4 clutch apply plate.
• 3-4 clutch return springs.
• Bolt-on anchor plate.
• Overrun piston outer seal.
• Socket head cap screws (15).

NOTE*
Part #77733-10KA fits 298mm units only
Part #77733-11KA fits 300mm Non-Reluctor units
Part #77733-12KA fits 300mm Reluctor units
Click Here for Extreme & Performance Transmission Rebuild kits