The part # I ordered was 4254C for the rear 11.5" They are the chrome springs and caps.
The 'heavy duty' # is 4252C according to the reference charts given on Phat Performance web site
Last edited by Pokey; 01/24/2009 9:02 PM.
06 TBA Mulberry Red/Silver (SOLD!! 
2010 Thunderbird LE 1700 :-)
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