Then explain how it is that when we changed out the gears...from 3.55:1 to
4.10:1...the speedo was/is still accurate.
(Wonder if they changed something for the '00+ trucks on the speedo
calibration...hmmmmm.)
- Bernd
-----Original Message-----
From: owner-dakota-truck@buffnet.net
Subject: DML: RE: RE: Differential Modification
But according to my FSM, rear end gearing as well as wheel size are all
input by the CAB to the PCM to determine speedo reading. That's why the CAB
needs to be programmed when your rear end gearing changes and/or your wheel
size (overall diameter) changes.
Ron
00 SLT QC 4X2 5.9 46RE 3.55 LSD
-----Original Message-----
From: owner-dakota-truck@buffnet.net
Subject: DML: RE: Differential Modification
SHouldn't have to have anything adjusted at all. From '98 on up, there's no
speedo-gear in the transmission and no calibration required. We went from
3.55:1 to 4.10:1 on my buddys '98 Sport (5.2L/Auto) and the speedo is still
accurate.
- Bernd
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