Hiding the EVAP Canister
1997-2002 Jeep Wranglers
While I was testing how the canister fit I found that it did not drop down as far enough to put the shelf back on. The firewall flares forward at the bottom and the canister stopped at that point.
I crawled under the Jeep and used a hack saw to make a slice in that flared part of the firewall and then bent it downward to allow the canister to drop down just far enough.