hard top to soft
Bestop
You can get them from any of the Bronco parts suppliers. Plan on spending between 550- 650. You can also find them on Ebay from time to time, but you take the chance of missing parts.
I have installed both the STC and the Bestop. Both of them are pretty easy to install and come with decent instructions. There are a couple of measurements to be made that may involve shimming the windshield frame. Both of them have their advantages and disadvantages.
If you don't have one already, a roll bar or cage is a must.
Jason



