I doubt this would hold up on the rocks, but an interesting idea. Though the times I suspected a problem with the diff/locker, I didn't really need to see it to know there was an issue.
I was curious about performance differences, as I moved to the Ram covers (3/16") before getting some Barnett covers. Here's an AI summary, it honestly surprised me to even consider polycarbonate as even a contender (despite the look of them not being for me).
Cover Type
Typical Thickness
Material
Impact Resistance (Blunt/Broad)
Resistance to Denting/Puncture (Sharp Rocks)
Best For
Other Notes
Polycarbonate (e.g., Clear Gearz or similar clear covers)
~3/16" (0.187")
UV-stabilized polycarbonate
Excellent – Flexes and absorbs energy without shattering (performed well in hammer/drop tests on similar axles)
Moderate – Can crack under severe point loads or repeated sharp hits
