So here ya go
Pic #1 - so I also use the chassis to store parts (among other things %)) while awaiting the tub, local guy has had my tub for over 2 years...the price of my unwillingness to tackle body work, but he does great work and is relatively cheap. + i have another Bronco to play around in ;D
Pic #2 - This is where the rear tank will sit
Pic #3 - close-up of Pic 2, note the adjustable hook bolt on the end of the strap that supports the bottom of the tank. The other end of this strap will have a T shape and will go into a slotted hole in the opposite (passenger side) frame rail (I have a new strap in a box if you want a pic)
Pic #4 - in this pic I am holding the camera just above the tank and looking toward the front of the chassis, you'll see roughly how the fuel and brake lines run along the frame rail, you will need a set of 3 or 4?? clips that hold both lines together against the frame
NOTE in the last pic your rear shock mount may not be the same as mine, yours may be farther back, closer to the tank. Word on the street is this change was made shortly before the 67 model year.
Hope this helps! -jeff