The TCI Forward Sprag Assembly is a heavy duty 29-element sprag for GM 700R4 and 4L60E transmissions. A sprag is a one-way clutch that transfers power through the transmission, and the TCI unit is stronger than stock in both material and design to handle more power.
- Fits GM 700R4 and 4L60E transmissions
- Forward sprag assembly
- 29-element design
- Heavy duty, stronger than stock in material and design
- Part number: 373600
FAQ
What does the 373600 sprag fit?
It fits GM 700R4 and 4L60E transmissions as a forward sprag.
How many elements does it have?
It is a 29-element sprag.
Is it stronger than a stock sprag?
Yes, it is heavy duty and stronger than stock in both material and design.

