Hod Rod Sled SHop has been working hard on new clutch packages for 2017. Our NEW PDRIVE Adjustable Pivot Bolt Kits are now available to precisely tune your shift rpm in 1/2 gram increments. We also have a new 4 position adjustable replacement weight with new curve that will allow 12 grams of adjustability and the ability to load the bottom, middle and tip. We have secondary helix and spring combos that work better than stock (but with stock Pdrive ramps) available now for quick improvement at the correct rpm for your stock 2017 sled. We also carry Gates Carbon Belts which are working great on the GEN4 sleds. Please check back with us as we are developing new product quickly.