My 02 dully is a cab and chassis, I am able to get to the in tank module/fuel pump. I was planning to install a Airdog 150 with draw straw then I saw the Airdog Fuel Module, what is involved here? And how is my fuel gauge to work if I pull out old pump. In other words I havent a clue. 

All that stays in the tank. Leave the stock sender all there. Just pull the 2 wires out the inside plug of the sender for the old in tank pump so its not running. 

 

Install a second draw straw in the tank but not in the sender basket. Reason why is you don't want the hot return fuel in the sender basket. I've been outside the sender basket since 2006 and never once had hot fuel. Fuel temp are typically <120*F unless a super hot day, and towing may I might reach the high 130*F.

 

My last install I did a custom mount for the AirDog 150 pump where I drilled and tapped the frame and hung the pump between the cab mounts to guard the filters and pump from debris strike damage. This was done on a short box truck and this trick cannot be done with FASS it just too big to hide!

 

Edited December 26, 20213 yr by Mopar1973Man

Got it, thats a good install. 
Are the power wires for the pump color coded or can you tell the diff between sender and pump?

 

Most likely all black wires. There will be 2 going to the sender. Then 2 will go to the pump. There is a blue clip inside the plug. Pull it out and then with a small screwdriver lightly lift the lock and each pin to remove the wires.