I think the roof units only come in 13.5 and 15k. More important is to get one that is a direct replacement for the OE.
2011 351RLTS Eagle, Mor/Ryde suspension & pin box
06 F350 Lariat PSD, SRW, LB, CC, EGR delete kit, 16K DrawTite hitch, Timbrens, TST TPMS
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