I tried something that has worked very well and i can stay with all traxxas parts. i want and needed more stall in the clutch so i took it apart cleaned it ,scuffed it up,balanced the shoes and cut any where between 10 to 12 or so coils out of the stock spring that hold the shoes in place just need to re loop the end.i got just what i needed and at no cost and as i said i stayed with the traxxas clutch. the only non traxxas parts i have are the springs for the big bore shocks. Thank You