I wasn't going to mention Darth's V5 receiver setup. Since the receiver is welded into the center well of the step bumper, the bolt count to the frame stands at 10.
Here is the left side with the side plate removed so I could get the rear tank out:
Here is the inside of the right side frame showing where the 3 bolts go on the side plate:
Here is what it looks like in the back, disregard the stickers, they were from over 10 years ago:
If you look closely, you can see the weld beads where the receiver is welded into the "step". I have no idea what brand of hitch it is, it and a 5th wheel hitch came with Darth when I bought him in April 1994.
Bill AKA "LOBO"
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"Getting old is inevitable, growing up is optional"
Darth Vader 1986 F350 460 converted to MAF/SEFI, E4OD 12X3 1/2 rear brakes, traction loc 3:55 gear, 160 amp 3G alternator
Wife's 2011 Flex Limited
Daily Driver 2009 Flex Limited with factory tow package
Project car 1986 Chrysler LeBaron convertible 2.2L Turbo II, modified A413