Originally Posted by MudFlap
I have never seen this thread before but I really like the idea. But I wonder, somebody smarter than me tell me why we cant buy a regular portable type air tank from Home Depot
and strap it up high somewhere under the body of the truck? Seems like a decent idea. How expensive would it be to have a custom built air tank (like 6 inch diameter by 3 feet long) and mount it right on top of the frame rail. Of course I aint looked under a 2nd gen to see how big of a tank would go but yall see what Im getting at. Just a random idea off top of my head is all.
If you can find the right tank size and with the right pressure rating, you can mount it. I'm sure people do just that, but you have to find the right size for your space. Another problem is that most cheaper tanks are steel, and they'll rust inside and out under the bed. Some aftermarket, purpose made tanks for OBA are aluminum, which saves weight and avoids most of the corrosion issue, but they're expensive.
A custom tank will run into the same certification issues that were discussed earlier in this thread. It's one thing if you manufacture your own tank, but once you pay someone to build one, I believe they assume some liability WRT certification standards. Some HPLV compressors use multiple tanks similar in size to the 6"x3' size you described, so it probably isn't hard to find something around that size.