You may have to loosen the pipe covers (snake skins) a little, to get easy access to the Header Flange Bolt Nuts... Usually loosened they will move far enough to let the 1/2" long socket in easily.... CAREFUL of the FENDER when you get to the front pipe flange........ Tools will leave unwanted Chips and Scratch marks....... Turning the bars to open the BOTTOM of the fender, away from the Handle of the tool, you'll be safer from DINGS...
I had a loose set in the front (little noise too) and got about a 3/4+ turn on both....
Quiet Now..... SMILE
ALSO, Don't snap a stud... I spay the nuts with ? your choice lube (WD40) Before Tightening.... it helps in tightening the 1/2 nuts, not fighting DRY n DIRTY Threads...
signed....BUBBIE