The front skid plate is the easiest part to put on. It's been awhile and I don't remember the part numbers, but a parts dealer should know the part number and the associated bolts you'll need.
The transmission shield is easy to do as well, a one piece shield and the associated bolts, nuts and washers. The tricky part is that you should do this last.
The tough one will be the fuel tank shield. This is the only piece that is not metal, it's a thick piece of ABS plastic (I'm guessing it's ABS plastic). Here, you'll need to purchase not only the fuel tank shield, but two new fuel tank bracket carriers (and the associated nuts and washers).
The stock fuel tank carriers on the EB will not have the two bolts protruding from the brackets where you mount the plastic fuel tank shield.
So, you need to remove the two fuel tank brackets and replace them with the fuel tank brackets with the protruding bolts. Easier said than done.
When I tried to remove the stock fuel tank brackets, you can't remove the stock brackets without dropping the drive shaft - at least, that's what I discovered.
This is why you don't want to put the transmission shield on because you'd have to remove it in order to drop the drive shaft.
Also, if you're thinking of doing the driveshaft by yourself - I found it difficult and gave up. I just couldn't get enough leverage underneath the truck.
What I ended up doing was during the last service under warranty, I handed the fuel tank brackets with the protruding bolts to the service tech and told them to replace the fuel tank brackets with these. They obliged.
After that, it was easier to put on the fuel tank shield and the transmission shield.
At least, that was my adventure adding those pieces.
