My front tank sprung a leak, so I've been driving on the rear tank for the last few weeks.

I've got a new front tank I'll be putting in tomorrow. It seems like it will be a straightforward swap; I plan on doing the filler neck mod while I'm at it. The only thing I'm not sure of is re-priming the lines to the front tank. I've still got the mechanical fuel pump. I plan to warm up the truck on the rear tank to get the fuel system moving nicely and then flip to the front while revving the engine. What has been your experience with this?

 

No need to reprime, just start her with rear tank flip the switch to the front and drive.

 

Easy enough, I suspected I might be over-thinking it! Thanks!

 

So if I'm swapping both tanks what then? do one then run then do the other?

 

Just fill them and start it as you would normaly, as long as the fuel bowl has diesel no air will enter the system. (Like when doing injectors)