The 94 and earlier tops are much easier to install, they're less complicated. Try to look for install sheets on besttop's website, as well as tops4less, or look for the owners manual. 95 and later tops have the zip out windows, more complicated hardware. I've had both and I'm undecided on which I like more, because I like each for different reasons. for the 95+ I like the zip-out windows, and how you can open the tailgate without unhooking the rear window, but I find the 94- tops are faster to take off, and they look less bulky and more smooth.