# 37798K
Full Throttle 3-4 Shift Sleeve
SHIFT SLEEVE (700R4) FULL THR0TTLE 3-4
- The Superior Up-Shift Sleeve will service all 700-R4 valve bodies 1981 through 1993.
- This sleeve allows full throttle 3-4 up-shifts
- The 4-3 detent will become less sensitive at part throttle
- The 700-R4 Up-Shift Sleeve can be installed without removing the valve body from the case.