by 67shovel » Sat May 16, 2015 8:43 am
The 73 had to meet stricker impact laws so they moved the bumper out further, used heavier gauge metal on the bumper, and mounted each bumper mount with 3 bolts instead of 2. I just moved mine in on my 73. I took the original mounts and moved them back. One bolt still lined up on the mount but I had to drill another new hole to get the other bolt in. The hole lands on a strengthing rib on the mount so I had to weld a sleeve in the mount for the second bolt. I fabricated new corner mounts from flat bar. One thing you'll find/hate is that the valance and front headlight panel have reliefs in them for the extra height of the 73 bumper mounts. Once you move them back you have these gaping holes looking at you. A 72 valance would be nice to have but they are hard to find in one piece and $$. I welded in little metal patch to fill in the headlight panels gap and bondoed up the lower valance gap. I then fit my bumpers closer to the body ala Chip Foose style and welded caps on the cut ends, welded the bolts in and filled the holes, and had them rechromed.