How to fit a fiberglass seat?

[CarolinaBoy]

I got a fiberglass seat for my 360. I cut the front to fit it over the frame rails and trimmed some of the rear frame off. I'm curious on how to make it fit as seamlessly as possible.

Here's where I'm at. Any suggestions? Pics of what you did?

 

[Titan performance]

We shape a piece of ply to fit nicely into the seat, which we bond in with sikaflex or similar. (may have spelled that wrong). Once that's solid, you can fasten mounts to it.
ie. a tab coming forward to what looks like your tank rear mount for example, which can be hidden by the seat upholstery. A couple of tabs at the rear are easy to bolt on to match up with the frame somewhere too.

 

[VonYinzer]

Theres honestly a million ways. You can weld hinges on the frame and bolt them to the seat. You can use straps around the frame rails. And so on... Depends on your level of fab skills.