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Discussion Starter #1
Is there a difference in the leaf spring bolts on 08+ trucks compared to 99-07 trucks? I'm talking about the front bolts on the rear leaf springs (where they bolt into the hanger).

I used the bolts that came with my 08 leaf springs, and didn't measure them when I put them in. I saw a post where a guy said the bolts on 08+ springs are 20mm compared to 18mm on the 99-07 trucks. Can anyone confirm this?
 

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Discussion Starter #2
I just spoke with my parts guy at Ford and he confirmed:

99-07 trucks use 18mm
08+ trucks use 20mm

By the way...even with the hook up price they run $20/each for the bolts and $8/each for the nuts!!!
 
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