I have an 03 HD F150 4 door that I have had since new and it now has about 180k miles on it. It has been a great truck up tell now with very little problems. In fact it still has the original sparkplugs, supercharger oil, and almost everything. I have changed the oil about every 8k miles and changed all the fluids at about 100k miles and the rotors. It has been a badass truck and it even did 14.01 in the ¼ at Firebird here in Phoenix. Anyway the truck still looks and runs great but it is starting to make some chain noise with cold starts and I think it is the tensioners and guides. Does anybody know how long these parts can last?