Ok guys. I was told on the reg and several other sites NOT to use RP in the tranny because of the syncros. I have been told that RP is really good stuff. What do you all think? I need to change the tranny fluid, or should I say want to change it, due to some sticky shifts and missed shifts. Just dont know what to go with.

 

Bump? I'd like to know as well. Getting ready for a 3650 upgrade build myself and also planned on using the RP syncromesh. Guess the name, in addition to the brand name, made it sound to me that it would be better.