Thanks for the tip. When I replaced the bolt through the frame I noticed that it was a little looser than when I first installed the tow brackets. I didn't use a torque wrench, but did notice that it was a little "soft" so I didn't over tighten it(I hope). I'll check it next time I'm underneath. Good info.

'97 Jeep Cherokee XJ, Country, Black/Gray Leather, 4.0L, 4WD Command-Track, AW-4 Auto, 3.55:1 Gears, PowerTrax No-Slip Locker, Hi Country Tow Brackets, Spectre Air Filter, 235X75R15 Goodyear Wranglers, 126K miles