changing gear ratios
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Senior User
Joined: Aug 2010
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thanks for your help!!! yeah the place that quoted me the 2500 was houston drivetrain right off the east loop close to mccarty....you think it will be that cheap even with my truck having a larger rear diff?
FTE Leadership Emeritus
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From: Houston, Texas
IMO, the gears may be a little more expensive, but a diff is a diff so labor should be the same. I'll give them a call and see what they say...
Lead Driver
Joined: Jun 2007
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From: Corvallis, OR
Auto or manual? If manual, the granny gear will allow 3.73s or taller, if auto you'll want the 4.10s with the load you have and it will help with transmission life. Only go 3.73s with the auto if you spend a lot of time over 70mph.
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After talking to Texas Truck Works, it seems that some 2008 F450s shipped with a Dana 80 axle, which is bascially the same as those found on Big Rigs. That's why specialty shop told you almost $3k to do it as it requires a little more than a standard Dana 50 or 60 axle.
Still good news though, the price they quoted for doing the job was considerably less than that specialty shop you mentioned. Texas450, check your inbox and we'll go from there.
Lead Driver
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From: Corvallis, OR
Dana 80 is a baby compared to those found on big rigs.... I thought the F450 came with a Dana 110.
Cargo Master
Joined: Jan 2006
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From: SE. MA
I know the 08 and newer do, but I think the 80 was on 07, and younger.....
Lead Driver
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From: Corvallis, OR
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FTE Leadership Emeritus
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It's something to that effect, I'm sure I messed it up somehow...I'll post back once I get some answers again from TTW.
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