Okay, here is the story. I installed 3.73 gears on my 98 and put in the 23 tooth tranny gear to correct the speedo. Should have put it pretty darn close. After that, I put on white face gauges. I removed the speedo needle to do this naturally. When I reinstalled it, the speedo was way, way off for some strange reason. What I did to correct was drive the car with my wifes car as a pace setter at 65mph.....while going down the hyway I slipped the needle onto the speedo right at 65 mph. Now I find out 3 years later that it is off by 5 mph. Maybe my wife messed up (usually the case), or I flubbed up pacing her, at any rate the question is, what would you guys do to correct this? Do speedos have a mechanical adjustment on them somewhere, or do I just pop off the needle and try what I did before?
How to correct pre 99 cable speedometer
- Thread starter prsrizdgt
- Start date
her speedo might have been off a few miles per hour. no factory speedo is accurate unless it's a cop car with the certified speedo. most of them are off 1-4 MPH 5 is a little high
prsrizdgt said:Yea, her car was a pontiac so I am sure it was off now that you mention it.
LOL yeah her speedo is probally off 3 mph or so.. and she is off about 2 MPH
even with your 23 tooth gear, you will be off around 10% if you zero the needle correctly. You can check this with your odometer with the mile checks, you should be around 10% off(showing more miles than you actually travel). I know I am. I'm just too lazy to install my speed cal. the 23 tooth gear would be accurate for 3.55s.
98blackstallion
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