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Corvette servo has over 50% more surface area so it applies that much more force to the 2-4 band.

Typically these performance rebuild kits replace the items that the stock 700R4 through 4L60E’s are known to be inadequate for heavy duty and performance work.

That said GM constantly has put upgrades into these transmissions so not all upgrades are needed all of the time.

The cons to the Corvette servo is the shift on 2nd and 4th will be more feel-able in your butt. Opposite of GM’s long standing desire for imperceptible shifts.

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