I noticed that it didn't have info for 57 trucks after I went to the page and read it grin no biggie, at least you tried to help! BTW, a cylinder index is simply adding up all the pistons you have in your household. i.e. lawn mower, weedwacker, cars, trucks, etc. Then the goal is to have a cylinder index that is close to your age cool Thanks again for the help attempt...
Dan

my truck gets better every day...every PAYDAY smile