This project has been a long time in the making. I wanted to get as many parts used or free yet still get a great working system. I am not an extreme rock crawler so the tank location and size is not the best if you are, but it best suited my needs. Only parts i bought were the compressor used, compressor bracket, air block, pressure switch, and gauge. The rest I got for free from my dad who is a diesel mechanic. I made the block mount sorry dominion off road I'm poor.