It's your truck, but I'd wait if I were you. Personally, I'd build the suspension and undercarriage first. I'd butcher the OEM Bumper to get me by until later when it's more feasible to add the prerunner bumper. I got an idea from seeing a few wrecked Titans driving around here. Here's a thread where I used MSPaint to show my idea of how I might cut my bumper ends off after the kids are grown and moved out and I know our roadtrips in the Armada will be reduced:
http://www.titantalk.com/forums/titan-parts-accessories/89004-prerunner-bumper-installed.html
http://www.titantalk.com/forums/titan-parts-accessories/89004-prerunner-bumper-installed.html
