performabuilt or rpm??
RPM has top notch customer service, and knows how to build a trans! Been running a Level VI T56 since 2006, and its been flawless!! Also, some of the BEST customer service Ive recieved anywhere!
.......RPM for sure!great sponsor & even a better trans company!

good luck!
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If I refer a customer for a 4L60E it is to RPM or ACE.
I also have another point to make.
In the automotive aftermarket, the REAL players are the ones who are doing R&D and coming up with the new ideas to go faster, prevent failure, etc.
If you like having the option of better parts and continuous improvement being brought to the market, you want to spend your money with the companies that are investing in, taking the risk, and spending the time to develop the parts.
RPM falls into this category, as does Circle-D for example.
Just something to think about.










