Anyone Running a 66RFE?

[JedIEG]

Im seriously considering a Hemi swap, but the transmission is another big item for me. To me the 66RFE seems like the ideal automatic. Better gear ratios than the 65RFE with tougher internals in 5he same package, more gears than the 46rh and not as complicated as the NAG1 or ZF8. But I have never seen anyone running one. Any experience here?

 

[wish4hemi]

My vote would be 8HP (ZF8). I posted this on FABO: https://www.forabodiesonly.com/mopar/threads/318-8-speed-swap.431245/

 

[5.7 hemi]

The NAG1 is a tough sum bitch! They can be built to handle big power. But to answer your question, I’d call Chris at hotwireauto.com and chat with him.