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Old 01-11-2014, 03:20 PM   #11
73chevy95
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Join Date: Jun 2013
Location: Roseville, Ca
Posts: 14
Re: 1973 Chevy C20 Flatbed (Semi Build)

well my rear u-bolt measure out at 3 3/8 width and somewhere around 14 long,
I believe there wasn't much extra length on the bolt, because my lift blocks measure out at 4 1/2 and the spring pack is about 3-4" can''t remember now not counting the axle i'd be about 8" which most u bolts that i've found are 10"
so i'm thinking a shackle flip is in order, been looking around can't figure out what i need,
I would think that since i have 4" lifting blocks i would need 4" shackles for the kit???
any help would be appreciated!!
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