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Old 08-15-2020, 02:18 PM   #1
wbmoore
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Join Date: Jul 2001
Location: Big Bar, California
Posts: 136
1982 C/30 crew cab 2WD front coil Design Load

I’ve searched but not found the answer to this: what is the Design Load of STOCK GM front coil springs on a 1982 Big Block C/30 crew cab ?

I’m installing an engine/trans combination that is north of double the weight of a BB/T400. I don’t want to install new coils that are same as the ones coming out.

I’ve found springs with 3289 and 3789 pound Design Load ratings but can not find out which of those numbers is the STOCK GM rating for a BB C/30 CC. Larger GM motorhomes come with coils with a 4289 pound DL which also fit but these might be OVERKILL.

Thanks.
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1967 GMC 3500 lwb dump flatbed project
1969 GMC 2500
1979 GMC 7000 fire crew truck w/water pumps
1982 C/30 Cummins NV5600 Crew Cab project
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