i have a 96 f 350 dually with the 4.10 gear.
thought about changing it to either a 3.55 or 3.73. what are some thoughts about doing such a thing.
i do not use the truck for pulling stuff as much as i use to but do not want to get rid of a paid for truck of this caliber..lol
I had 4.10's and swapped axles and have 3.55's now. Wish I would have kept the 4.10's. The highway mileage is better with 3.55's but it doesn't pull as hard anymore.
3.73's would be perfect IMO, but I wish I still had my 4.10's
If you tow at ALL on a fairly regular basis I'd stick with 4.10's or go to 3.73's
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Brownie, Ooh-Rah! USMC Member of the NRA!
'95 F350 CC 4x2 - SRW Swap, E40D, PHP 6 Pos. Chip, 6637 mod, 3" D.P., Lost Kitty, 140v IDM, HPX Mod, FPR Shim (65 psi), T.C. switch, 3.55 gears
'88 F350 CC 4x4 - lots of dents, faded paint, old 7.3 IDI in pieces
Mixed driving I get between 16 and 18 depending on how heavy my foot is that week. If I baby it I can get 18mpg city/highway
Highway I have gotten 22mpg
I am getting my PHP Chip this week so I'm interested to see if I get any mileage gains with that... (If I can keep my foot off the go-pedal long enough)
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Brownie, Ooh-Rah! USMC Member of the NRA!
'95 F350 CC 4x2 - SRW Swap, E40D, PHP 6 Pos. Chip, 6637 mod, 3" D.P., Lost Kitty, 140v IDM, HPX Mod, FPR Shim (65 psi), T.C. switch, 3.55 gears
'88 F350 CC 4x4 - lots of dents, faded paint, old 7.3 IDI in pieces
Ok. I have a bullydog chip on my truck and get between 15 and 16 in the summer. I am guessing that if I went to the 3.55 I would jump to about 20 to a gallon.
A good friend of mine has the 3.55 gears and he gets 20+ MPG. It still has decent pulling power just not as much as mine with 4.10's. LOL
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Sam
Humble yourself and give thanks to GOD.
<>< Family of 7 saved by Grace <>< 95 CC Dually 3inch downpipe no muffler/cat Edge Programmer, 6637 MOD, 140v 2000 Ranger 4X4 No MODS, yet!
I was thinking about trying some 3.73's. I feel the need to know how well it will pull 16,000lbs.
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Sam
Humble yourself and give thanks to GOD.
<>< Family of 7 saved by Grace <>< 95 CC Dually 3inch downpipe no muffler/cat Edge Programmer, 6637 MOD, 140v 2000 Ranger 4X4 No MODS, yet!
Well my dads 06 6.0 pulls our bobcat on the trailer with absolutly no problem what so ever and it has a combined weight of just over 12,000 lbs and it's got 3.73's.
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