Sorry for another questions but this definitly seems the right place to ask.

My truck is a 90, hypothetically speaking, if i wanted to change over to the 92 and up front end how hard would this be? Correct me if im wrong but it looks like the hood, fenders, and bumper are the same. I am assuming only the headlamps and grill are different. How about the filler pannel between the grill and bumper? How about the mounting of the grill and headlights? Core support the same also? Has anyone done this, any problems i may run into?

 

Whole front clip is different- just looking at headlights tell you this -( park beside one)seen quite a few done.Look for 92-97 F-150 or Bronco front clip with rad support- cowl is diff. also with multi. small holes instead of slotted grille type as 87 -91. Remember big Broncos are in 4 different bodies styles-78-79, 80-86, 87-91, 92-96

 

Remember the mirrors, if you are going all the way.

Someone here has a gallery where he did exactly what you want to do, and posted _a lot_ of pictures. I can't recall the name off of the top of my head. Can anyone remember the guy's name, so Joboo can view the gallery? The guy even got part of the dashboard swapped over, if I recall. He changed the instrument cluster to use 92+ gauges. It's a really nice truck.

 

Check autofab.com they have done it and have much information about the process including info on body panels. It has been done by many so the info is out there.