The steel roll bar inside the factory '80-91 Bronco camper shell is glued into the fiberglass, but not bolted to the bedwalls. This is an '83 shell. I'm not sure if '78-79s had any steel.
This shows an '80-91 top on a '78-79 body:
Here's a cross-section thru the window opening:
![rollbar1.jpg The steel roll bar inside the factory '80-91 Bronco camper shell is glued into the fiberglass, but not bolted to the bedwalls. This is an '83 shell. I'm not sure if '78-79s had any steel.
This shows an '80-91 top on a '78-79 body:
[url=https://www.supermotors.net/registry/media/466460_1][img]https://www.supermotors.net/getfile/466460/thumbnail/80-top-on-79-bronco.jpg[/img][/url]
Here's a cross-section thru the window opening:
[url=http://www.supermotors.net/registry/media/667787_1][img]http://www.supermotors.net/getfile/667787/thumbnail/zzzzzzboat-044.jpg[/img][/url]](https://www.supermotors.net/getfile/316405/fullsize/rollbar1.jpg)