AMK Upper Control Arm Bolt Kit for 1968-1973 Mustang, Cougar, US Falcon & US Fairlane.
Will also suit 1967 Mustang, Cougar, 1966 - 67 US Falcon & Fairlane, as well as XR - XC Falcons with the shaft style upper arms (not the late XC onwards rubber bush).
Old bolts might break, nuts can round off, it happens. So if you've got that suspension all torn down for a rebuild and you're replacing everything anyway, why not get new hardware, especially when the correct-style is so readily available?
Correct-style 12-piece kit includes (4) Grade-8 1/2"-13 knurled bolts, (4) nuts & (4) washers, enough to install both upper control arms.