Yep, at the very most you may need to trim the little spacer tube/post that goes on the the non-saver side of the bellcrank unit- all the other holes will line up perfectly.
The GPM stuff does feel and look cheap for sure, I had my doubts too back when I first built the Gmaxx, but they have held up just fine- no bends or stress fractures despite my wonderful driving and several cartwheels
