Hi all. I just brought home a 1997 Jeep Wrangler and noticed that my mph was 6 miles slower than it should be. The speedo said 50 and my gps said I was traveling 43-44 mph. The tires are the same size listed on the manufacturer sticker inside the door, so I know it's not that. It seems stock all around and has 103,000 miles on it.
pull the speedo gear out of the t-case and look at the number enscribed on it. thats the number of teeth. that corresponds to a specific gear ratio & tire size. look up speedo gear charts on google and see whats wrong. buy the proper speedo gear and its fixed.
Thanks. I just checked the spare and it's a 30 inch so I think I'll get some 30's then. My last Jeep had 31's and they looked good too.
so your solution to fixing the speedometer is to buy tires, a tire size of which you have no idea corresponds to the speedo gear or axle ratio, and costs several hundred dollars? spend $500 on tires, only to find out you could have fixed (and still need to fix) your inaccurate speedo with a $50 speed gear?
do you also buy a new house every time the toilet clogs up?