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700R4 Performance Up-Shift
Sleeve:
● 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.
The Superior 700-R4 performance
up-shift sleeve deals directly with the 3-4 full throttle up shift. This
up-shift sleeve is popular with racers wanting the ability to have the pedal to
the metal all the way to overdrive!

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