[Stocker]

Originally Posted by 72K20

Those are exactly the same tanks I have. I was just a little incredulous about hanging all that weight on two bolts but it obviously has worked well for you.

That's exactly like tanks on my truck, and they have been there (and used) since I bought it nearly 33 years ago. No problem holding up the weight.

Also, it does not appear as though these tanks have any type of sending units. Were they plumbed as secondaries to the main tank or how did you know when they were getting low (other than obvious)?

Like chevy_mike's '68, mine also have sending units wired to a 3-way switch under the dash. My selector valve is same as the one in 68 50th's picture.