I am pretty sure they are different. I believe the 2nd gen. trucks have longer ones. And there is also a difference in the bolt hole sizes from early 2nd gen. to late 2nd gen. I am not sure what the cut-off years are. Hopefully someone can jump in and help me out. This is from the top of my head and I will try to get better specs for you. You should definately look into it better before you tear your rig down.