Didn't have 90 degrees for F 721 to roll bar(89.6 RS and 89.8 on LS) so added shims per instructions .032 " on both sides, after torqueing the nuts 50" lb on #4 and 24" lb on #3 I rechecked and had 90.1 on both Left and Right , so close enough I hope. Cut roll bar brace drilled and deburred holes and installed top skin and boled brace in