700r4 / 4L60/4L60E Billet 4th Gear Super Hold Servo


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Vehicles with a 4L60 (700-R4) or 4L60-E transmission often exhibit poor 3-4 shift quality and experience band failure in performance applications. The Sonnax "Super Hold" 4th Gear Servo features 40% more apply surface area for greater holding power.
40% more surface area for greater holding power Affects 4th gear only Can be used with OEM, Corvette or Sonnax performance 2nd gear servo assemblies Easy to install: Transmission removal is not required

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