Who cares?! Their money. Their truck. Their rules. Or maybe it’s cause it’s a mod and it just stupid window tint...

As for the actual tank, it has a built in separate fuel gauge and pump. When it senses your primary tank is at a certain level, it starts to fill from the auxiliary. It’s pretty neat overall.

And gas weighs just a hair over 6 pounds, so it’s less than 200lbs. An aftermarket bumper with full size spare and full jerry cans will be north of that. That particular poster only had a hitch tire carrier. So he may be around the same weight as any other 4Runner running about the back country.

People outfit their trucks with what they need and want. Ideas are great. New items are great.