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1991 Chevrolet C2500 Cheyenne 5.7L Speedometer
Posted to GM Electrical on 12/31/2007 5 Replies

I changed my rear axle ratio and I am having trouble finding a re-calibration plug to remove the old calibration from my instrument panel,this year has the DRAC built in the IP.I have all the documentation to reprogram to the new ratio but I need to know which...

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car Vehicle Data

1991 Chevrolet C2500 Cheyenne

VIN 2GCGC29K7M
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedSpeedometer
ConditionsFast
Misc.Ext. Cab
Message Closed

car Vehicle Data

1991 Chevrolet C2500 Cheyenne

VIN 2GCGC29K7M
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedSpeedometer
ConditionsFast
Misc.Ext. Cab