Year Make Model | Painless Performance
Made in the USA
Closed Saturdays
Easy To Read Printed Wiring
TH700R4 Transmission Torque Converter Lock-Up Kit By Painless Performance
Made In USA
P/N 60109 $209.99
TH700R4 Transmission Torque Converter Lock-Up Kit



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  • App
  • Specs

This Painless TH700R4 Transmission Torque Convertor Lock-Up Kit takes all the guesswork out of controlling the lock-up function on your 700R4 overdrive transmission. This kit will work with both carbureted and fuel injected engines and saves you from having to buy any seperate, expensive computer-controlled equipment.  A provided vacuum controlled switch and 4th gear pressure switch controls the torque converter lock up solenoid.  Kit comes with all wiring and everything needed to complete the installation and fits any GM TH700R4 transmission. 

This kit includes:

  1. Vacuum switch
  2. 4th gear pressure switch
  3. Brake switch
  4. Torque converter lock-up solenoid
  5. Wire harness
  6. New transmission pan gasket
  7. Mounting hardware



WarningProp 65 Warning
Hazardous Material Warning

WARNING: This product can expose you to chemicals including lead which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit

Link to P/N:
Engine: Any
Trans.: TH700R4

Number of Circuits: 5 CIRCUITS
Harness Length: 11 ft long overall
Fuse Type: No Fuses Included
Firewall Passthrough: Varies on routing through vehicle
Color Code Based:  Painless Specific
Connections Included:
  1. TCC(Torque Convertor Clutch) Solenoid to 4th gear pressure switch(provided in this kit).
  2. TCC(Torque Convertor Clutch) Solenoid to Main Case Pass-Through Connector
  3. Main Case Pass-Through Connector to Vacuum Switch(provided in this kit).
  4. Vacuum Switch to 4 pin Brake Switch(provided in this kit).
  5. Brake Switch to a 20 Amp Fused Power Source.

THE GM TH700R4 TRANSMISSIONS were offered in GM cars and trucks from 1981 thru 1993. This transmission kept its designation of TH700R4 until 1990, when GM renamed them the 4L60. The 1990 thru 1993 model years "4L60" used a round 5 pin connector and no longer used the square weatherpack connector. Painless' kit Part Number 60109 is provided with the early square weatherpack connector.