Difference in 99-07 and 08+ leaf spring bolts? - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 2 (permalink) Old 04-06-2011, 02:57 AM Thread Starter
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Difference in 99-07 and 08+ leaf spring bolts?

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?

2005 F350 Crew Cab 4x4
PMF Rear Leaf Spring Conversion w/2011 Leaf Springs
20" Harley Wheels 305/55/20 Nitto Terra Grapplers
ARP Studs & EGR Delete from PowerStrokeMagic w/GearHead Tunes
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post #2 of 2 (permalink) Old 04-07-2011, 01:03 AM Thread Starter
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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!!!

2005 F350 Crew Cab 4x4
PMF Rear Leaf Spring Conversion w/2011 Leaf Springs
20" Harley Wheels 305/55/20 Nitto Terra Grapplers
ARP Studs & EGR Delete from PowerStrokeMagic w/GearHead Tunes
Amp Research Steps, MBRP

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