'99 Explorer Speedometer and 32s

[Phoenix0783]

Does the m-4209adpt-ac speedometer calibrator work on these explorers too? Other options besides dealer if it doesn't?

 

[1996BLKBauer]

With my 31's I just did the math, and figured I was going 3-4 mph faster then what the speedo says, never been in trouble doing that, had the tires on for almost a year now.

 

[PrerunnerManiac]

With my 31's I just did the math, and figured I was going 3-4 mph faster then what the speedo says, never been in trouble doing that, had the tires on for almost a year now.

That really depends on how fast you're going, the faster you go the more it will be off.

 

[MAS Tequila]

I keep my GPS on and ue it as a speedo.

MT

 

[turboranger91]

I keep my GPS on and ue it as a speedo.

MT

That's what I did with my 33's.

 

[1997XLTRollover]

Why not just change your speedo gear? I don't think it's really all that hard.

 

[Rockwood]

Why not just change your speedo gear? I don't think it's really all that hard.

Cant on a 99, speedo input is calculated through the sensor in the diff. The earlier ones had the drive in the t-case I believe up to 97

 

[1996BLKBauer]

That really depends on how fast you're going, the faster you go the more it will be off.

Yea I know. I just did an average of the speeds I usually go, anything below 35 won't really matter that much, 45-70mph is what I am concerned about.

 

[Phoenix0783]

With my 31's I just did the math, and figured I was going 3-4 mph faster then what the speedo says, never been in trouble doing that, had the tires on for almost a year now.

That's what I've been doing. It's not driving bad or anything, just would like it to be correct.

 

[1997XLTRollover]

Cant on a 99, speedo input is calculated through the sensor in the diff. The earlier ones had the drive in the t-case I believe up to 97

Ah. Can't change the gear in the instrument cluster to correct for it?

 

[1996BLKBauer]

That's what I've been doing. It's not driving bad or anything, just would like it to be correct.

They do make stand alone gps speedometers, I really don't like taping into the factory harness that much, so I would avoid those calibration things for the speedo.