Was already on truck when I bought it. Series parrell switch was still in it as a junction box. I took it out for more room in the cab. Just simpler too. · 04/11/2009

Was on the truck when I bought it. Didn't realize how much it helped until it broke one day. No wonder the truckers back in The Day were so tough. Uses alot of air. I put another air tank on, should help alot. Hydrolic power is much better but harder · 04/11/2009

Previous owner put Maxis on the truck. Much better... · 04/11/2009

I installed an electric air switch in place of the original worn out air selector switch. I will get pics of it. Haven't ran the truck but think it will be better than new. · 04/11/2009

Previous owner put 11.00-22.5 tubeless tires on the steer axel. I have 8 12.00-22.5 tubeless tires and wheels to put on the rear. For a truck that you use it is priceless. Tube tires are always flat. I have had experiance with them and HATE them. · 04/11/2009

Previous owner installed a 237. I am installing a Jake Brake. · 04/11/2009