Chrysler A413/31th Billet Low/Reverse Piston

Billet reverse piston made from 6061-T6. This piston utilizes the stock lip seal but was made with slightly larger tolerances to fit the bore better and reduce fluid leakage. These are a must when increasing the pressure on your A413 as the stock cast piston has been known to break.

There is also an option for a solid piston that gets rid of the cushion spring for a more positive engagement and less overlap on the 1-2 shift as the low band releases faster. Making the reverse servo solid  doesn't allow the piston plug to slam against the piston causing it to break. 

Must reuse pin, C clip, and large spring.