The OEM designed the 10 speed Allison pressure schedule to be on the edge of slip during most operating circumstances, it's prone to slipping clutches and degrading as hard miles stack up. This shift kit adds much-appreciated clutch holding capacity by dramatically increasing fluid pressure on the clutches and during the shifts. The result is much firmer shifts under heavy throttle inputs and less chance of slipping the transmission while using power adders.Thiskitgives you quick and cleanshiftsthat go perfectly with a tuned L5P, italsowill work fine on a stock truck.

Expert installation included with package pricing

1 day turn-around time

Drop-off in the morning or overnight and drive home in the evening

Get the most out of your 10-speed transmission

Wider torque curve so you can put the power to the ground

Completely safe to use with any tuner or tuning option

Better for towing (especially up long grades)

This package is for in-house installations. After placing your order, our staff will reach out to you for scheduling confirmation.