Do you need a slide, or just a solid mount?

It depends where the fridge lives. If the lid is reachable from the tailgate or a back door, a fixed mount that simply holds the fridge still may be all you need. If the fridge sits deep in a bed or cargo area — under a rack, behind a drawer face, inside a canopy — a slide is the difference between using the fridge and excavating it. The failure mode of skipping the slide is predictable: the fridge migrates to wherever it's reachable, which is never where the weight should ride. This is a two-product collection, so the comparison is quick; run the year, make, and model filters and check each listing against your fridge's dimensions.

Fit the fridge first, the truck second

A slide has to match the fridge's footprint and mounting points before anything else, so start with the fridge — measure the one you own, or pick from the fridge collection first and build outward. Then confirm the rated capacity comfortably exceeds the fridge's loaded weight, because a packed fridge is far heavier than the empty spec and washboard multiplies every pound. Check extension travel too: a slide that only reveals half the lid solves half the problem.

Plan the whole cargo system around it

A slide is usually the anchor tenant of a cargo build-out. Mounting it on a drawer-and-platform system like Goose Gear's keeps the fridge low and the wiring tidy, and pairing the install with a dual battery setup means the fridge runs at camp without a second thought. Sketch the interior as one system — fridge, slide, platform, power — and you'll only have to build it once.