Thread: Differential service, etc.
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  #11  
Old 06-30-2009, 03:07 AM
glc glc is offline
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Join Date: Dec 2006
Location: Joplin MO
Vehicle: 2003 Ford F150
Posts: 9,210
If the lube already has modifier in it, one bottle should be enough even on a 9.75.
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2003 F150XL 4.2 short cab/bed 4x2 5 speed manual 3.55 LS
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