Removing 4 Repair NL2 Aux Tank

[67chevy2wd]

Originally Posted by jocko

NL2 was a factory RPO, not a dealer-installed option - but it was available in both 71 and 72, so you should assume yours is indeed original. 71 assembly manual excerpts for ref:

Cool to see that. I just assumed all aux tanks were dealer installed.

[jaybatta]

Dang, I never realized that tank is outside the frame rail AND hangs down below the bed. How many gallons does it hold?

Thanks

Joe

[PbFut]

Thank you for the pics. I was thinking I could use a simple rotory switch and wiper knob on the dash and it would duplicate the look and function without having to source an original switch. The plastic valve label was available a few years ago but I've not been able to source one so far. My truck is far from show but a reasonably clean driver. Sure would like to find one of those plastic valve labels.

[67RS/SSx2]

PbFut, have you found the information you were looking for? I do not have source for a replacement switch or dash label, but I do have the NL2 option on my '72 C20. Mine has the original-style rotary switch to switch the gauge between tanks. A previous owner added an electric valve to switch between tank fuel/return lines.

I found a manual switch at a marine supply that switches the return lines as well as the fuel lines. Not certain it will physically fit in place but at ~$180 I am not sure I want to go that route.

My tank is out awaiting a decision to try to have it cleaned and sealed, or have a replacement fabricated.

Thanks for the thread and I will be glad to help if I can.

Dee