350k5 said:
In that case what would be the way to get the old window out if I decide to just swap shells.
Edit: I just called today and they said they don't have one for an 85 any more but they do have a tailgate from a 91... would those two be interchangable/would the internals still change out?
Depending on the condition of the 91 (is the glass good, etc) you may just want to bolt it on. The only reason why I wanted to get the glass out of my gate is because it was clear, and I had a tinted piece that I wanted to put in. Also, the rail that holds it in place and bolts to the raise/lower mechanism was rusted all to hell, and I have a decent one from another tailgate. So I was going to use my tinted glass with the good rail in the tailgate that used to have the clear glass with the rusted rail (bracket, whatever they call it.).
If the 91 has good glass, good internals, and is rust free, I would just bolt it onto your truck and run the neccessary wires. Or if you want to stick with manual, then you can switch out the guts.
To get the glass out, unbolt the rail from the arms that connect it to the raise/lowering gears (four bolts). There should be two plastic caps on the top of the gate that unscrew (two phillips each side). Take these off, and you should be able to pull out the rubber/felt trim that cushions the glass and prevents water from getting in. you may have to put pressure on the gears to move them away from the glass, but the glass should move up and through the top of the tailgate (it's best if the glass is raised part way when you start (easier to unbolt and get leverage), but if you don't have a power source for the power gate, I'm not sure how you would raise or lower it).
Hope this helps. IMO it's nice to have the power gate, but power options mean that there is more to go wrong, and more stuff to fix when it breaks.