well i can tell ya this it took about 4 to 6 hours depending what you come up against. fyi for ya, the passenger side header will come out from the top and the driver side drops from the bottom. good luck . i paid to have it done , lol wish i had the time to do it, but time is not on my side . i sat and watch about the last three hours when they were putting them on, its just kinda time consuming. O0 good luck