Patent ID: 6907974

Claim:
A high performance intermediate servo assembly for replacing an original equipment intermediate servo assembly within an automatic transmission, wherein said original equipment intermediate servo assembly includes a piston cover, a servo piston, an accumulator, an accumulator spring, a spring retainer, an apply pin, and a cushion spring assembled coaxially for actuating a 2 nd gear clutch within said transmission, said high performance intermediate servo assembly comprising: a high performance servo piston cover having an oversize piston bore in comparison to said original equipment piston cover; a high performance servo piston for mating engagement within said oversize piston bore, said servo piston having an overall length equivalent to an assembled stack-up dimension of said original equipment servo piston, accumulator, accumulator spring, and spring retainer components and also integrating critical working surfaces thereof to retain proper function; and a modified apply pin for insertion in a mating bore formed along a longitudinal axis of said servo piston, wherein said apply pin includes length adjusting means for varying the effective axial length thereof.