I started this project thinking that I would either weld the air tank to the truck or drill some holes into the frame to install it. But, as I was researching camper tie-downs, I realized Torklift simply clamps their front tie-downs to the frame. I like that idea better so I designed a bracket for the 2.5 Gallon Viair Air Tank that is rated for 200 PSI. This tank has 6 1/4″ NPT ports and 15.3 pounds. Here are step by step instructions:
1. Get three zinc plated 10″ L-brackets and two 4″ L-brackets. 10″ L-brackets are symmetrical on both end. Cut the third 10″ L-bracket in half so you end up with 2 bars.
2. The frame on the Dodge Ram 3500 is 3″ thick. I clamp the frame with 10″ L-bracket, the half bar and 4″ L-bracket using 3.5″ bolts. I am using 4″ L-bracket as a support to reduce to stress on the 10″ L-bracket. Holes with yellow arrows line up and need to be enlarged to allow 3.5″ bolts. Holes with red arrows are used to mount the air tank. I primed and painted everything to prevent corrosion.
4. Mount the brackets with 3.5″ bolts, washers and self locking nuts.
5. Everything is now mounted. Connected the tank to the ARB Air Compressor and filled it up to 100 PSI and tested the fittings with soapy water to make sure nothing leaks. Whole setup sits about 1.5 inches lower then the frame, but it is not the lowest part of the truck.
Project Difficulty Rating Easy Medium Hard
Project Shopping List
- 2.5 Gallon Viair Air Tank
- Zinc plated 10″ L-brackets (3)
- Zinc plated 4″ L-brackets (2)
- 3.5″ hex head Bolts (4)
- Self locking nuts (8)
- Flat washers (16)
- 1/4″ 200 PSI Air Tube
- Orange Teflon Tape
- Viair Tank Port Fittings Kit
- Rust Oleum Primer
- Rust Oleum Flat Black Paint
- Nylon Cable Ties
- Electrical Tape
- Split Loom