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Difference between 4WD and 2WD Rear Leaf Springs?

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Old 08-18-2016, 10:48 PM
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Default Difference between 4WD and 2WD Rear Leaf Springs?

Hey guys, wondering if anyone knew if there was a difference between 2wd and 4wd leaf springs? The GM parts catalog does in fact list two different part #'s for 2wd vs 4wd leafs.
Old 08-19-2016, 01:02 PM
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i believe its two different weight capacities
Old 08-19-2016, 01:55 PM
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Originally Posted by terravast4
i believe its two different weight capacities
Yes I'm trying to get to the bottom of whether the 4wd leafs are stiffer / have a higher spring rate.
Old 08-19-2016, 02:09 PM
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I thought the 4wd leafs had an additional leaf pack? 2wd were 2 leafs and an overload, and 4wd was 3 leafs and overload. but don't quote me on it.
Old 08-19-2016, 02:17 PM
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Originally Posted by MikeD.
I thought the 4wd leafs had an additional leaf pack? 2wd were 2 leafs and an overload, and 4wd was 3 leafs and overload. but don't quote me on it.
Mine 4wd leafs are 2 and an overload.
Old 08-19-2016, 02:37 PM
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Ahhh, that's why I said don't quote me lol. Now I'm just interested in knowing for sure.
Old 08-19-2016, 03:50 PM
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Don't quote me on this but
1500s may have the same rate vs 2500HD and 3500HD will have a higher spring rate.
Old 08-19-2016, 04:51 PM
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Originally Posted by Tig
Don't quote me on this but
1500s may have the same rate vs 2500HD and 3500HD will have a higher spring rate.
Lol ok I just need to find quotable data
Old 08-19-2016, 04:57 PM
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All I know is I would swap my 2014 2WD tow package springs for non-tow springs...I haul nothing but *** anyway! LOL


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