September 30, 2005
This part only fits '03-earlier units with a .354" dia. OE TCC control valve. Measure OE valve spool diameter as shown here to confirm application.
Do NOT install this part if the OE valve measures .412".
Vehicles with GM 4T40-E and 4T45-E transmissions often have torque converter control valve apply and release problems and torque converter overheat issues. This is caused by TCC control valve bore wear and the TCC valve sticking. Sonnax TCC control valve sleeve 33000-03 restores proper clearances and allows the reuse of the OE valve in a wear-resistant sleeve.
Tool kit F-33000-TL, required for installation of this part, is no longer in production. Tool kit may still be available for purchase out of distributor stock. Check with your distributor for availability.