The GMade leafs that I have are very, very similar in size to the RC4WD leafs.No need for the nuts on the leaf bolts. I am pretty sure the RTR's don't have them, but could be mistaken. I never put them on my TF2 when I changed to my K44's (mounting should be relatively similar), I just used loctite and they never thought about loosening on me, and I bounced the hell out of that truck.
From what I understood, the GMade leafs are quite a bit shorter. Having said that, since you have a Sawback, give it a shot and report back.
Yeah! I think you did the right thing. "thumbsup"You're right. It wouldn't be the truck that I've always wanted, without the leaf springs. I just ordered all the parts I am going to need and leafs were one of them.