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Old 11-29-2012, 03:21 PM   #1
pontiac6269
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Rear U-bolt torque ?

I bought a 85 Blazer last Saturday and one of the first things I did was remove the 4" lift blocks out of the rear, (no lift in th front). Bought the correct stock size u bolts and they list torque specs on the label as 265 ft lbs for 5/8 bolts. Is this correct? I haven't worked on leaf springs except for shocks on my truck.

Thanks, Eric
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Old 11-29-2012, 04:34 PM   #2
68Timber
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Re: Rear U-bolt torque ?

140 lb/ft
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79 2wd Blazer (Bruiser)
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Old 11-29-2012, 06:55 PM   #3
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Re: Rear U-bolt torque ?

Thanks, Have another question, do I have to get shorter or a stock type lenth shock now that I removed the 4" lift blocks?
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Old 11-29-2012, 08:09 PM   #4
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Re: Rear U-bolt torque ?

I read somewhere once that you shouldn't reuse u-bolts, that they were set for a one time use when you torque them down. I knew that and still reused a set once in a pinch and never replaced them. All I can say is they didn't fail, but I'm not sure what the general consensus is.
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Old 11-29-2012, 08:27 PM   #5
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Re: Rear U-bolt torque ?

The u-bolts are new, I was wondering if the rear shocks may be to long without the 4" lift blocks and should be replaced with a stock length shock?

Thanks
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2001 Ford F350 EC dually 7.3
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1978 Oldsmobile Cutlass Supreme 455 Pontiac
1969 Pontiac GTO 400
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Old 11-29-2012, 08:38 PM   #6
68Timber
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Re: Rear U-bolt torque ?

My mind saw u-bolt, not shock, sorry. If it really does have shocks for a 4" lift, then yes, you do have to replace them.
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