thanks for the information. i have since been given a new long 80's chev tank and a older chev pu tank that stands along a wall. i think i may mount the older tank inside the panel above the wheel well behind the passenger then work on getting the price of two new repo originals.
Good luck, but I can tell you this.
I have an S10 frame under my AD truck & the S10 frames are a tad wider then the AD truck frames & those long tanks won't fit....joe