To remove the tanks after taking out the pressed board panels,
1 There are 2 bolts going in from the front that you’ll locate inside the rear wheel well to remove.
2 You’ll need to remove the brace on the rear of the tanks, both from the tanks and the body to make it easier.
3 Remove the gas cap from the car, 4 screws visible when open and a wire hose clamp on the rubber neck of the r/h tank. Also remove the rubber neck from the tank.
4 Loosen the clamps on the short hoses at the bottom of the tanks and slide them forward on the connector elbows, may take some work if they’ve not been removed since the car was built. You’ll need a long screwdriver for the clamps, can be kind of awkward to reach.
5 Tanks will need to be wiggled around to remove, helps if you disconnect the trunk lid support arms and rotate them so that the spring hook is out of the way.
6 Removing the crossover pipe does require removing the trunk latch, cover comes off with 4 bolts, latch assembly has 4 either bolts or screws, I don’t recall off the top of my head, then pulls out. Crossover has 2 bolts through the rear valance from the bottom, remove them while unhooking the fuel line. You’ll probably need to remove the crossover elbows before the pipe will move enough to come out.
Reinstall is the reverse of the steps, but secure the tanks in place before the crossover as I find it easier to have the crossover loose as I hook everything up so there’s some movement allowed when sliding the short hoses on.
You might also want to add a ground wire from each taillight to the rear tank support while you’re reassemblying, easy to do with just a length of wire with a ring on each end, one one the tank support and one on the upper or lower post of the taillamp. Works better than an iffy ground to the body through the post touching a bare spot..