Just a fyi, I chose belts from Juliano with chrome flip latch as it was more adjustable, the fixed end of the retractable belt has a 6” long metal stay which gave me more options to position it ( by bending), also that version has a 24” adjustable on the short belt.
Putting a support in behind the sheet metal on a 46 was a big deal


Hank: 46 Chev 1/2ton shortbed
2023 Miata RF Club