If you are replacing the straps note the pins may have become corroded and will be very difficult to remove. I ran into this recently replacing the skid and the rearward strap. I was able to get the cotter pin out but the actual big pin holding the tank up was frozen solid in the strap. Of course I probably have the most rusty LC known to man so take that into consideration.
I ended up onbolting the rear strap which was tricky due to the bolt location and the previous mentioned rust. Bolt sits about 1.5" above frame rail meaning I could only get an open ended box wrench on the 14mm bolt. Took several heat cycles with a torch to get that bolt unfrozen. Was more difficult than the other bolts on the other side but was doable. All the other bolts have excellent access, even with drive shaft in place (some remove driveshaft but it's doable without removing anything).
One other thing to note, my actual gas tank had rust on it as well so I had to treat that with rust converter and Por15 before putting the skid back on.
Good luck, it's a fun little project!!
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