well i have a 86 jimmy. i have been looking at the full convertable conversion and want to know peoples opinions on them. and how much work, problems, ect.
It's not terribly hard. spend some time with a tape measure once you get the front window out first. Take measurements in three or four places, and make doubly sure when you graft the full vert section on to not make those measurements tighter than they were...or getting the glass back in will be a metric pain in the ass!
I stuck some 3/4" OD tubing into the lower section as 'pegs' for the upper section to sit on. Fit was snug, which is good.
Body sag/flex can be an issue. Box tube sliders and/or a roll cage is a good idea to counteract that. I had both and still had issues, but the body on the Jimmy was such a patched together mess it's amazing the doors would close. The cowl/firewall is what ends up sagging, and on factory full convertible K5's they have rocker boxes under the floor. If I were to do it again I have a much better idea of what to do to fix that issue...
Rene