RatioTek has announced a new transmission tuner kit for the AS69RC transmission, a six-speed automatic transmission that was made for Dodge by the Japanese gearbox manufacturer Aisin Seiki. The kit fits 2013 and later 3500/4500/5500 Ram trucks. According to the company, the kit recalibrates clutch solenoids for increased clutch oil apply pressures. It installs from
Significant bore wear at the SLT accumulator bore is common in Aisin Seiki AS66RC and AS69RC transmissions, resulting in unstable line pressure, low pressure, and multiple shift issues. Reaming the bore and installing Sonnax oversized SLT accumulator piston kit (p/n 122740-17K) will restore proper clearances and hydraulic function.