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12-03-2009, 07:32 AM
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#11
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Site Team
Join Date: May 2007
Location: Southern New Mexico
Posts: 10,185
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Re: Speedo Errors in 4 Low
Anything can be done, given enough time and money.
It comes does to your motives behind wanting accurate speedometer readings in 4xLo. Curiosity, speed limits,...?
Herb
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SMB-less as of 02/04/2012. Our savings account is richer, but our adventures are poorer.
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12-03-2009, 10:08 AM
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#12
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Senior Member
Join Date: Apr 2007
Location: Blairsden, CA (when not on the road)
Posts: 1,109
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Re: Speedo Errors in 4 Low
Geoff - from what I was told by SMB when I ordered mine is that they put in the higher geared case unless the lower ratio one is requested.
I got the higher one myself. Don't need to climb trees....
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Scatter
You can be anything you want on the Internet,
it amazes me that so many choose stupid....
2007 RB50, 6.0
K1WGB
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12-03-2009, 06:59 PM
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#13
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Senior Member
Join Date: May 2007
Location: Washington - Ridgefield
Posts: 4,728
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Re: Speedo Errors in 4 Low
Quote:
Originally Posted by Skywagon
I've had about 50 4WD vehicles, and I don't think I've ever had one that told the correct speed in 4 Low
Bill
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Bill,
I checked my Chevy PU and in that vehicle the speedo is accurate in 4Lo. Any vehicle with an electronicly driven speedo should be able to compensate for the lo-range gearing. As could a mechanically driven speedo if it is driven after the transfer case or off a wheel (like my VW bug).
Mike
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Alaska to Key West, Labrador and more
Prostate cancer survivor. See Thread Prostate cancer and Sportsmobiles
2015 VW GTI 2020 Fiat 124 Spider
2012 E250 Hitop camper
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12-03-2009, 07:41 PM
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#14
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Senior Member
Join Date: Oct 2007
Location: Azusa, California
Posts: 1,092
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Re: Speedo Errors in 4 Low
You guy's have made me crazier , thinking about if in the last forty years with numerous 4X4's
that I have really ever used the Speedo while in Lo range , I know that I have in Hi range many times .
Usually I drive by Feel and Sound when I have reached the need for Lo range . Thank you Guy's I needed something to PONDER .
Greggde
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03-05-2014, 03:33 PM
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#15
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Senior Member
Join Date: Jun 2012
Location: Unterfranken
Posts: 458
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Re: Speedo Errors in 4 Low
Quote:
Originally Posted by carringb
QuadVan told me I can connect 4wd-low input under the hood (with the PTO/CTO wires) to the transfer case (will be electronic) and my speedo will be accurate in low range. Maybe diesels don't have that input?
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Hi can you tell more about this.
I have an 4x4 labeled wire unter the hood and maybe i can use it to give the speedo the right signal?
__________________
www.Dieda-unterwegs.net
2001 SMB E350 4x4 7.3 Powerstroke
1968 Pontiac Firebird 400 Convertible ,1978 Peugeot 504 Convertible,1988 Porsche 911 Carrera 3.2,KTM 300 EXC,BMW G/S Paris Dakar,BMW "Diabolo"
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03-05-2014, 05:00 PM
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#16
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Senior Member
Join Date: Jan 2009
Location: Corvallis, OR
Posts: 5,304
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Re: Speedo Errors in 4 Low
Quote:
Originally Posted by schluchtenflitzer
Quote:
Originally Posted by carringb
QuadVan told me I can connect 4wd-low input under the hood (with the PTO/CTO wires) to the transfer case (will be electronic) and my speedo will be accurate in low range. Maybe diesels don't have that input?
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Hi can you tell more about this.
I have an 4x4 labeled wire unter the hood and maybe i can use it to give the speedo the right signal?
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You will have to find the Brown/Yellow wire coming from the transfer case switch, and connect if to the 4x4 lead under the hood. From what I can find, it switches to ground, so if you ground out the 4x4 wire you will be able to tell if its applying the correction of not, before you go through the hassle of finding and connecting the T-case range sensor.
__________________
2000 E450 dually V10 wagon
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03-05-2014, 10:20 PM
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#17
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Senior Member
Join Date: Feb 2012
Location: Up In The Mountains
Posts: 427
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Re: Speedo Errors in 4 Low
Hey there carringb, I’ve been off the forum for awhile. Thanks for the info. I need to look into this too. I heard U-Joint may have a kit that addresses this issue. I’ll need to look if my NV271 has any ports or plugs in it for any sensors (100% Manual, not even a 4x4 light) but I do have the PTO wires under the hood.
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2003 Ford E-350SD 4x4
V10 / 4R100 / NV271
Front Axle - 1 Ton Spec Dana 60/King Pin/Open Knuckle/High Steer
Rear Axle - 1 Ton Spec Dana 60/Full Floating
Eaton E-Lockers Front And Rear/4:10 Gears
ARB Differential Covers - Nodular Iron With Dipstick And Drain Plug
Leaf Spring Suspension Front And Rear
46 Gal Transfer-Flow Fuel Tank
ExtremeAire Magnum Air Compressor
Reunel Rear Bumper
On And On ...
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