[Hozer 88GTConv]

First of all, convertables are the BEST foxes out there...

of course, I am biased...

anyway, here goes.

1) Top cylinders can be visually inspected for leaks while the top is down by looking directly downwards with a flashlight at the top of the cylinder where the chrome strut protrudes outward. Look for leakage of red hydraulic fluid.
each cylinder = $140

2) The hydro/electrical motor is accessible from behind the rear seat, (just two bolts on the lower corners of the seat and it's out) look at it and actuate the top with the motor exposed looking for leakage at the motor or unusual sounds from the motor itself. New motor = $200

3)Weatherstrip condition, top pillar and header...ensure good resiliency and reasonably flush fitment with the windows.

4) Electrical motor rebuild is easy and cheap, the nylon bushings that wear out over time are widely available and less than a dollar and viola, working motor.(you can use the general purpose kit for all motors including the quarter windows contrary to popular belief)

5) Convertable motor mounts are better than stock foxes and convertables also come with frame stiffeners from the factory (although I have and fully recommend full length welded heavy gage tubular steel subframes)

6) The inside of the header where the windshield mounts to the car is very susceptible to corrosion and eventual rust and leaks. I thought it was deteriorated weatherstrip and spent the bucks to buy new ones when it was the goop they seal the windshield with that had deteriorated. DO THIS TEST...close the top and spray water from a hose directly at the windshield along the weatherstrip and valleys and look for leakage.

7) Realize the interior is going to take a beating from the sun.

8) Most importantly, drive around really fast with the top down and savor the good things...