We have had these for at least 5-6 years now possibly longer.
Part # 6682895-2 67-72 Fleetside, Blazer, Jimmy Inner Bed Side Wheelhouse Flange
Found on the following page of our website.
https://gmcpauls.com/bed_patch_panels.htm
We have a ton of new parts that are now also that should be added to our website in very near future such as all styles of inner cab rear window panel, complete inner cab roofs, complete B-Pillars for 67-70 drivers side and b-pillar for 71-72 drivers side with pressure relief valve opening which didn't exist in 67-70, 67-72 passenger side b-pillars, driver and passenger side roof rail weatherstrip channels for joining a & b-pillars at top of cab to inner and outer cab roof.
67 Inner Upper Cab Back Wall W/Small Rear Window
67-72 Inner Upper Cab Back Wall Large Rear Window
67-70 And 72 Inner Roof Complete can be used on 71 also nut no raised mirror pad like original on 71 only.
67-72 B-Pillar Passenger Side
71-72 B-Pilla rDrivers Side
67-70 B-Pillar Drivers Side
67-72 A-Pillar To B-Pillar Roof Rail
67-68 Firewall Toe Panel With Air Conditioning
We also have a lot more new items to add and more coming soon.
Paul Jr @ GMCPauls