New billet Sonnax 4th gear servo and cover
While the Corvette servo replaces the two inner pistons, this replaces the outer piston and cover, so this can be used together with the Corvette servo for ultimate performance. This servo increases the holding power in overdrive by 40%, to almost completely eliminate the chance of burning up the band. While using this servo you'll be able to pull most loads and even race in overdrive without burning up the band.
Installs easily with the transmission in the vehicle
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