Renegade Posted September 7, 2007 Share Posted September 7, 2007 Swapped out the rear spring packs today. Passenger side bracket(not sure what it's called, but the shock is bolted to it) was VERY overtorqued in a past life. It was bent up around the leafs & the old u-bolts were badly bent....to the point I can't believe they didn't fail. I quickly set out in search of a replacement. I checked with all the other MJ owners in my area(that would be 2) & both trucks had the same condition. I assume this was a case of using too thin material from the factory? Are they all bent like this? And while we're on the subject, what do y'all torque the u-bolts down to? Link to comment Share on other sites More sharing options...
FxRacing282 Posted September 7, 2007 Share Posted September 7, 2007 hmm u bolts should be around 40pounds Link to comment Share on other sites More sharing options...
HOrnbrod Posted September 7, 2007 Share Posted September 7, 2007 Swapped out the rear spring packs today. Passenger side bracket(not sure what it's called, but the shock is bolted to it) was VERY overtorqued in a past life. It was bent up around the leafs & the old u-bolts were badly bent....to the point I can't believe they didn't fail. I quickly set out in search of a replacement. I checked with all the other MJ owners in my area(that would be 2) & both trucks had the same condition.I assume this was a case of using too thin material from the factory? Are they all bent like this? And while we're on the subject, what do y'all torque the u-bolts down to? No, they are not all bent like this. Some pics would help. Also, is it a LB or SB? Different shock mounts. Link to comment Share on other sites More sharing options...
Renegade Posted September 7, 2007 Author Share Posted September 7, 2007 Some pics would help. Also, is it a LB or SB? Different shock mounts. No pics(no digital camera) I'm just gonna tighten the new u-bolts down & keep a close eye on'em for a while. Should be fine. Probably won't even use a torque wrench, since it won't be accurate against the warped surface. BTW, 40# don't seem like much. I figured at least 90. Link to comment Share on other sites More sharing options...
HOrnbrod Posted September 7, 2007 Share Posted September 7, 2007 Some pics would help. Also, is it a LB or SB? Different shock mounts. No pics(no digital camera) I'm just gonna tighten the new u-bolts down & keep a close eye on'em for a while. Should be fine. Probably won't even use a torque wrench, since it won't be accurate against the warped surface. BTW, 40# don't seem like much. I figured at least 90. Yes, 90 ft/lbs is the spec for an MJ. Link to comment Share on other sites More sharing options...
FxRacing282 Posted September 7, 2007 Share Posted September 7, 2007 wow guess i was way off. :nuts: Link to comment Share on other sites More sharing options...
Renegade Posted September 11, 2007 Author Share Posted September 11, 2007 Well I tried to torque the u-bolts down today. Not good. I got to 45 ft lbs with no problem. Went for 55 & the bolts started bending to the warped mounts, which I expected, but I started to get that "slipping, about to shear off" feeling through the wrench(if you've done much wrenching you know what I'm talking about). I stopped & I guess I'll just watch it very close for a while. If nothing else I can straighten the mounts in my press, then get some heavy stock, weld it on & drill the holes through. Probably should have done this in the first place :headpop: Link to comment Share on other sites More sharing options...
TNT Posted September 11, 2007 Share Posted September 11, 2007 If you are SUA make them into sliders to protect the u-bolts. Link to comment Share on other sites More sharing options...
87manche Posted September 11, 2007 Share Posted September 11, 2007 have you got the brace that goes inside the u bolt plate? without that I could see the plate bending very easily. Link to comment Share on other sites More sharing options...
Renegade Posted September 12, 2007 Author Share Posted September 12, 2007 Oh yeah. They're in there. Once everything started bending, it doesn't take much to continue to bend since the structural integrity is comprimised. Anybody got a good straight set laying around they wouldn't miss, like after doing a springover? Link to comment Share on other sites More sharing options...
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