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Old Mar 16, 2011 | 02:56 PM
  #1  
Vinny Mastrodomenico's Avatar
Vinny Mastrodomenico
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Spring Code ID

All I know this has been covered multiple times, but I need a little help.
Found allegedly new rear springs on craigslist. Stamped with Ford logo, labeled:
ZC34LC
RPN 1379
Craigslist owner said rear springs are from a 2006 truck that was sold (so no door codes to check). The springs were removed when new, to install a lift kit. What code would this be? I cannot find the prefix designation on any of the spring charts given on previous spring code threads.

My rear springs are sagging, and I would like to upgrade, I am hoping these are B-codes, so I can lift my X's bottom up again

Thanks,
Vinny
 
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Old Mar 17, 2011 | 01:56 AM
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WE3ZS's Avatar
WE3ZS
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Check how wide they are.

Vinny, you may want to get the seller to measure the springs width and compare that to your stock springs width, I think at some point (possibily in '05 when the Superduty fronts went to coils) the F series rear springs got wider. I don't believe the new wide ones will work on our trucks. Hopefully someone will chime in if I'm off on the year of the change.
 
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Old Mar 17, 2011 | 06:21 AM
  #3  
Vinny Mastrodomenico's Avatar
Vinny Mastrodomenico
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Originally Posted by WE3ZS
Vinny, you may want to get the seller to measure the springs width and compare that to your stock springs width, I think at some point (possibily in '05 when the Superduty fronts went to coils) the F series rear springs got wider. I don't believe the new wide ones will work on our trucks. Hopefully someone will chime in if I'm off on the year of the change.
Thanks Tom for the help. I will measure my springs and then give the seller a call.
 
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