GenRight hasn't updated the instructions yet.
The new tanks are as you've described. On the rear bolts (4 of them) you re-use the factory bolts/washers. For the front side mounts, you have to drill a hole through the frame. This allows you to put the bolts through the frame, and tighten the tank in towards the frame.
The easiest way, is to get the tank exactly where you want it, and secure the rear 4 bolts/nuts. Once they are tight, jack up the front of the tank till its in a good location. Mark the inside of the frame where the mounting holes are. Once marked, remove the tank and start drilling.
A few things to watch for, depending on what body lift your running.
1) Make sure the fuel pump housing clears the body of the Jeep.
2) Make sure the EVAP/Fuel lines clear the body, and aren't pinched shut.
3) You want the tank as far back as possible... this will allow the most stretch.
4) The skid plate sits at an angle, so don't let that fool you into getting it level.
5) If you're going to install outboard shocks, have fun with the fuel filler. Its a PITA to work with.
Anyway, sounds like a NICE project!!!
The new tanks are as you've described. On the rear bolts (4 of them) you re-use the factory bolts/washers. For the front side mounts, you have to drill a hole through the frame. This allows you to put the bolts through the frame, and tighten the tank in towards the frame.
The easiest way, is to get the tank exactly where you want it, and secure the rear 4 bolts/nuts. Once they are tight, jack up the front of the tank till its in a good location. Mark the inside of the frame where the mounting holes are. Once marked, remove the tank and start drilling.
A few things to watch for, depending on what body lift your running.
1) Make sure the fuel pump housing clears the body of the Jeep.
2) Make sure the EVAP/Fuel lines clear the body, and aren't pinched shut.
3) You want the tank as far back as possible... this will allow the most stretch.
4) The skid plate sits at an angle, so don't let that fool you into getting it level.
5) If you're going to install outboard shocks, have fun with the fuel filler. Its a PITA to work with.
Anyway, sounds like a NICE project!!!