Hey all, Thought that I should take a minute to introduce myself. My Name is Greg and I am addicted to my K5 blazer. I live way up north in Edmonton Alberta Canada. Up here most people drive Heeps and various other off road vehicles. I admit to driving a Heep for a very short time too but have seen the light. The blazer I currently drive is 1986 with the stock running gear; I just recently installed a 4 inch Pro-comp lift and some 33s.What a difference a small amount of work makes. We wheel mostly the Rocky Mountain foothills trail system with some small rocky areas lots of Muskeg and deep mud. I have enjoyed stopping by and checking out some of the great advice you share with one an other in the various posting areas. Some of the info shared has really helped me in my quest to improve my K5. Colorado K5 is the source for all blazer tech. Here are a couple of pics of a local trail. Easy question for you, what is the formula used to calculate ramp index ? As measured I traveled up this ramp 86 inches from the base of the ramp. Not to sure of the ramp angle. Thanks again for having such a great site. http://ca.photos.yahoo.com/rcrawler32 Must open a photo album.