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I have an 02 f350 drw with 4.10 gears and I get now where close to 14 more like 12 on the highway. I just got it it's 4x4 and I put diy intake 6637 filter I would love to get at least 16 to 18 on the highway!! What do I need I was thinking 3.73 gears ? how much would that help?
Yep me too. I was getting 14.3 with 4.10 gears, ais, exhaust and a 6 POS from php...I converted to SRW and it bumped it to 15...(all hand calculated) Lifted it a couple inches and I am back down to 14.1.
I'd love to see what people are doing to get +16 mpg....
2002 F-350, was a DRW, now a SRW (but kept the dana 80
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ARB's front and back, 4.88 gears on 37's
AIS, 4 inch MBRP, 38R ww2, IHI bellowed up pipes
PHP 6 Pos Chip, swamps 140 volt mod
PMF coilovers and 4 link...front and back
2008 D60 up front, 2002 D80 out back
Psc hydro assist with ported hydroboost, p pump