I need a new 140 speedo also. Mine makes noise and reads WAY too slow. 10 - 20 MPH slow. The odometer reads about 13% low, the trans is not original but the plastic speedo gear is original, would a different tailshaft gear in the trans make it read low.
I have only seen one GT in the junkyard so far, forgot to check for the speedo
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Frank W
90 5.0 LX coupe Daily driver. Silencer removed, K&N filter. Flexalite fan, 3 core radiator. FMS flywheel and Clutch
88 Notch 2.3L 5 speed Parts/beater car
74 Chevy Laguna Type S-3 305 fixing soon, getting a 454 to put in garage
www.chevellepages.com/folingo
[This message has been edited by Chevyguy (edited 04-06-2001).]