Speedometer Calibration
08-26-2016, 02:57 AM
#1
Speedometer Calibration
My 91 W250 Auto i's officially driveable after the last 4 month long build. First impressions are great, I love the truck, so does everyone else.
I did a rear end swap and now have 4.10 gears in the truck with 35s, and my speedometer seems to be reading 10 mph over actual speed.
How do you correct these speedometers?
I did a rear end swap and now have 4.10 gears in the truck with 35s, and my speedometer seems to be reading 10 mph over actual speed.
How do you correct these speedometers?
08-26-2016, 11:21 AM
#2
Registered User
check out this thread I wrote up....should help/
Speedo ratio adpater... - Dodge Cummins Diesel Forum
Speedo ratio adpater... - Dodge Cummins Diesel Forum
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