WTH ?? Speedo reading 'Slower'...??

Jul 20, 2003 4 Replies

....than the actual speed traveling ??



Just got this 89 LX 5.0 Vert couple days ago...



I did the Odometer/milemarker thing and it seems to be reading ~5% lower. Such as; 1-Mile Marker = 9.5/10 mile on the Odometer.



I don't know what gears it has (yet), and don't know what it originally came with (door sticker gone). It's got 225/60-15s.



Ideas ??


ERIC


89 5.0 LX Vert
64 Falcon HT Hot Rod Project

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Roger that Carl.

I jacked it up and the Tag read 2L73...... I also did the tire/driveshaft method. It does equate to a 2.73 rear gear.

I was told when I bought it that it had a rebuilt T-5 in it as well.

Could the gearing in the Rebuilt T-5 be screwing up my Speedometer ??

Where can I find a listing of the gear ratios for T-5s ??

ERIC

89 5.0 LX Vert 64 Falcon HT Hot Rod Project

Check out the Ford Engine Heaven!

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ERIC

89 5.0 LX Vert 64 Falcon HT Hot Rod Project

Check out the Ford Engine Heaven!

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tire/driveshaft

Its either got smaller gears, or its got bigger tires. Those two things will throw it off. Gagan

What size tires can OEM on 89 5.0s w/10 hole rims ??

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