Speedometer recalibration place.
Does anyone know a good speedometer recalibration place in the Ft Worth/Bowie, Tx? There used to be a place in Weatherford (I think), Tx but, I can't find it. Anyone have suggestion's?
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Re: Speedometer recalibration place.
TCIauto.com has a formula and calculator for speedometer gears. You need to know the gear ratio in rear end, tire diameter and final ratio in transmission. You also need to know the "drive gear" ratio in your transmission which you can figure out from your current "driven gear" tooth count. As long as your current speedometer is consistently wrong, a "driven gear" change should get you close.
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Yes, we're talking about the same thing. |
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If you determine what percentage your speedo is off you don’t even need tire height, gear ratio, or gears in the trans.
Use a ratio adapter like this.. http://www.texasindustrialelectric.com/speedo.asp |
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50-60 bucks.
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Guess the price went up since I bought one.
88 clams on here. https://transmissioncenter.net/shop/...ratio-adapter/ |
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You don't need an expensive adapter. Take your speedo cable off at the trans. Pull out the plastic gear. Count the teeth. If your speedo reads too slow get one with fewer teeth and vice versa.
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And a simple (maybe simple) gear change always snowballs.
New yoke seal, tailshaft gasket, new gear and clip, and while it’s apart let’s do the u-joints. And then you find you’re still off 5 mph. Ratio adapter works for me. Sure wish I still had the Stewart Warner multi adjustable ratio adapter I had 40 years ago. I’d take a pic for you guys. Awesome piece. One housing that’s easily opened with multiple gears and charts for infinite adjustment. |
Re: Speedometer recalibration place.
My speedometer hasn't been correct for years. I owned one of those little digital gps speedometers for a time, and sometimes use my phone.
https://www.amazon.com/dp/B07HQCCFWB..._PMiIFbW8JN78M . |
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I used an app on my phone to figure out how much mine was off and then put little markers on my spedo to indicate my actual speed. It sounds hokey but works for now. I did not want to take the spedo cable off of the trans because I used to have a Turbo 350 that kept on leaking from that location.
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