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Old 06-27-2008, 08:22 AM   #4 (permalink)
Blacksmog
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Join Date: Apr 2007
Location: Abita Springs, LA
Posts: 37
i used the 75/90 Royal Purple in the rear, works well and has the posi additive in it
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04.5 Quad Cab 2WD SB, Air Dog, S&B Intake, 4" Exhaust, 4.10, Factory Navigation
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