I'm using a connection from the gladhands, as that's the easiest.

No promises as to the accuracy of the gauge, it's certainly not a precision instrument. At least no more than the rest of the truck. And I would have to call a freightliner a small(very small) step better than an Intrashational.

Found the following on ebay. Can anyone suggest what the tube/hoses and unidentified unit hooked to the amplifier is/does?

thanks

gary


http://www.ebay.com/itm/Haskel-air-a...04767 5.l2557