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Dakaty
Dodge Dakota
11/06/2001
20:37:13
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 Subject: Rear End Job
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Message:
I just got a quote from the dealer to swap out my 3.55 for new 3.92s - about $1400.
DON'T THINK SO...
I've found a used set of 3.92s.
What do you think it should cost to have them installed by a good shop?
Thanks
Bill
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Dave
Dodge Dakota
11/06/2001
20:58:08
| RE: Rear End Job
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Message:
I recently got a quote of $500.Thats for labor and parts.An install kit are the parts required and it has new bearings,seals,shims,etc.I also was able to pick up a used(5k miles) 3.92 R&P from ebay for $30.
Dave
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Dakaty
Dodge Dakota
11/08/2001
12:24:21
| RE: Rear End Job
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Message:
Did you install or have someone install the 3.92s?
If so, what kind of difference did you notice.
I have a QC with the 3.55s. I've checked with a couple different gear shops and they suggest I go with 4.11s, instead of the 3.92s.
Do you (or anyone else) have an opinion on what gears would be best and what effect on mileage I could expect with both the 3.92s and the 4.11s.
Thanks
Bill
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Jon
Dodge Dakota
11/08/2001
12:45:29
| RE: Rear End Job
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Message:
Would changing my gears screw with my speedo?
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Clevite 77
Dodge Dakota
11/08/2001
13:57:50
| RE: Rear End Job
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Message:
Jon, yes it will, as far as i know all you need to do is get a differant spedo gear that plugs into the tranny (easy to do) but it might be different with these new trannys, can anyone back me up on this or correct me?
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Dave
Dodge Dakota
11/08/2001
17:32:35
| RE: Rear End Job
IP: Logged
Message:
Dakaty,I have not yet had it installed,I got a $148 speeding ticket last Saturday so that pushed back my plans a coupla weeks.It will change your speedo.Just look in the yellow pages for someone that does speedo calibrations, my local guy does it for $25.All the Highway Patrol weenies have to have their speedoes calibrated and certified on a regular basis so there should be one close by.Just ask one of the HP guys where they go.
And yes it will make a noticeable differance in your acceleration,it will also cause your enging to turn a bit faster at highway speeds and will negatively impact your gas mileage to a certain degree.But all this is well worth it the first time you smoke some snot-nosed kid in his daddy's 5.0!
Dave.
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CW
Gen III
11/08/2001
20:06:31
|  RE: Rear End Job
IP: Logged
Message:
If your truck is 98' or newer you don't have to worry about the speedo. The speedo is read off of axle speed and not driveshaft speed.
4.7 5sp RC 3.91 sport plus
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