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gear ratio ?

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Old Apr 9, 2009 | 04:40 PM
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gear ratio ?
did these trucks come with gears any lower than 4.11 stock? according to my tag i have 4.55 gears with a limeted slip
 
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Old Apr 9, 2009 | 05:19 PM
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i dont think so ya sure its not 3.55
 
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Old Apr 9, 2009 | 05:26 PM
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it says 4L55
 
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Old Apr 9, 2009 | 08:11 PM
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Whats your transmisson and top speed?
 
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Old Apr 9, 2009 | 10:13 PM
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F250's and F350's had standard 3.55's with an option of 4.10's. I remember the F Super Duty trucks having 4.88 and 5.13 gears ratios. But no 4.56 (4.55?) that I am aware of.

What does your door tag say?

Jason
 
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Old Apr 9, 2009 | 11:09 PM
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RC is correct (well according the 88 manual)
 
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Old Apr 9, 2009 | 11:45 PM
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I could see it saying .L55, 98% of the time the first number is under the bolt head.

4.56 gears would top out at 65 MPH at 3300 RPM in direct drive.
 
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Old Apr 10, 2009 | 07:50 PM
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the tag says 4L55 but i can berry the needle on the speedo the tag just must be wrong i cleaned it off compleatly today and it clearly says 4L55 the front tag is no where to be found cuz after i looked at the back the first time i was like that cant be right so i went to look at the front and it was gone ill look on the door tagwhen i go out to close my windows and plug it in
 
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Old Apr 10, 2009 | 08:21 PM
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Your profile says 1992, so is that an automatic(E4OD) or stick(5 speed)?

Whats your RPM when you burry the speedo - uh scratch that.

Whats your RPM when you are cruising at 70 MPH?
 
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Old Apr 10, 2009 | 09:59 PM
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it has a E4OD at 70 i am about 2700rpm i am feeling lazy and its cold outside in the morning ill check the door tag plug it in and close the windows haha
 
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Old Apr 10, 2009 | 11:39 PM
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An E4OD with 4.55 gears and 235/85-16 tires should run 77 MPH at 2700 RPM in overdrive.
 
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Old Apr 11, 2009 | 12:04 AM
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Does a 4.55 even exist for these trucks?
 
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Old Apr 11, 2009 | 09:26 AM
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I know you can get 4.56 gears for the Dana, and since the Sterling and Dana are usually off by just a little, I am going to say it is possible.

Or another possibility is the axles are both Dana's.
 
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Old Apr 11, 2009 | 12:14 PM
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it has a sterling and i haxe 245 75 r16s on it right now as soon as i get around to it i will be putting a set of 265 75 16's on it
 
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Old Apr 11, 2009 | 01:26 PM
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so i went out and looked at the door tag and there is no gear ratio on it
 
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