Billet Clutch Piston for the GM 6L80/6L90

Transtar Part Number: S104985A

GM’s OE 6L80/6L90 1-2-3-4 pistons commonly crack due to cantilevered stress on the cast material. This Sonnax 1-2-3-4 piston is made from stronger, billet aluminum and has superior design refinements that add additional strength to prevent breakage and deliver maximum performance. 

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