Hello, Ed from Montana I have been out of riding for 10 years. I would love to run down and buy new, but that can't happen, so I am trying to build what I had 15 years ago. I have a 97 zr efi ett. I have 8 tooth drivers, track extensions, and a 136" X1.75 track. I know to some, this is less than desirable, but I don't want to notch the track to clear the tunnel heat ex-changers. I would like to lower the skid, like I had before for tunnel clearance. I know it changes the geometry of the sled, but it worked well for me before. My problem is skid bolt placement? I remember down, but I don't remember how far, or if it was down and back. My mechanic friend that helped me set up the last one has passed, so any help with this would be greatly appreciated? Thank you in advance!