has anyone done a 6 spd transmission swap into 05-09 RL?
I want to keep the j35 but swap the 6 speed from newer rl is it all plug and play as far as TCM from newer RL?

 

@teh CL , your expertise is being requested.

 

Only thing plug and play would be that the trans will bolt right up.

As for the ECU, at minimum you'll need to create a jumper harness with your ECU connectors ----> the KB2 6spd connectors/matching ECU.

That's simple enough but whether the KB1 will accept the newer ECU is the real question...

 

so its better to find a totaled kb2 and transfer everything then?

 

Yea that would help for sure.

​​​​​If your serious, go the jumper harness route first just in case the car accepts it.