1988 Chevrolet Van Repair Question
Topics covered: Dealer, Speedometer.
Mileage: No information provided.
Mileage: No information provided.
Asked on February 1, 2011
1990 chev van speedometer
I've replaced a 3:52 rear end with a 4:11. What do I need to do to get the speedometer to read the correct MPH? Van has a 5.7 with AT.
Answer
Replied on February 8, 2011
good luck on this one, the pcm has to be reprogrammed for the rear end and i'm not sure they will go for that particular rear end. You'll have to contact a dealer and talk to their guy that does the reprogramming. It may not be capable of doing this.