400-80E Oversized Intermediate Piston

Billet Oversized Center Support Piston for Th400- non center lube 4L80E

Increase intermediate holding capacity.

Firmer 1-2 shifts.

Note: CENTER SUPPORT NEEDS TO BE MACHINED OPEN APPROXIMATELY TO DIA OF 6.230”. Depending on your stack up you may need to chuck on lathe and decrease overall height to get desired clutch clearance.

Uses factory center intermediate piston lip seal and 80E Direct piston outer lip seal.