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Showerthought: A customer's complaint about a weird vibration made me check something I always ignored.

He said his truck felt 'loose in the back' only when towing his boat. I finally checked the U-bolt torque on the leaf spring shackles, which I used to just eyeball, and they were all way under spec. Now I break out the torque wrench for every suspension job. Anyone have a different method for checking those on a quick inspection?
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2 Comments
margaret_bennett3
margaret_bennett311d agoMost Upvoted
Seriously? You guys act like every bolt needs a NASA spec sheet. John's18 story about the trailer hitch, sure, that's a safety thing. But for a quick look at leaf spring U-bolts on some old farm truck? A good rattle with an impact gun has worked for decades. If it doesn't move, it's tight enough. Seen plenty of trucks where the shackles are rusted solid anyway, torque specs are a dream.
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johns18
johns1811d ago
Ever have one of those moments that just makes you feel stupid? I did almost the same thing with a trailer hitch on my old truck. Spent weeks chasing a wobble, turned out the bolts were just barely snug. Now I treat every nut and bolt like it's holding the whole thing together. That torque wrench is your best friend for a reason.
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