09-01-2008, 08:20 PM | #1 |
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speedometer gears
I need to know what the factory speedo gear is for auto with a 2.70 rearend gear?any help will be greatly appr.
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09-01-2008, 08:24 PM | #2 |
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They used a red gear for the 3.08 ratio. I don't know if there's another step from that, though.
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09-01-2008, 08:30 PM | #3 |
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I bought this car without the tranny and the cable was missing the gear just trying to figure it out.thanks
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90 gt stock with BBK cold air intake,B series Ford Racing cam,flowmasters,and alot more to come! |
09-01-2008, 08:40 PM | #4 |
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You could use the red gear, just keep in mind that you'll be going a little faster that your speedo says. Probably only a couple - few mph's.
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09-01-2008, 08:43 PM | #5 |
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Thats probably what I will do until I get another gear thinking about a 4.10 any sugestions
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09-01-2008, 08:48 PM | #6 |
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4.10 is a little tall for a stock 5.0 - unless you plan on upgrades soon. I went with the 3.73 and am very happy. With the 3.73's I used a white gear which is said to be used for ratio's between 3.55 & 4.10 - If memory serves me right, a white speedo gear has 21 teeth.
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09-01-2008, 08:52 PM | #7 |
3v's are slow
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I agree. Your powerband needs at least another 1500 rpm before going to 4.10's
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09-01-2008, 09:04 PM | #8 |
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I have a e303 cam ,2500 stall,and a 1 inch plenoum spacer . none of it is in stalled yet got it today tradin around
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90 gt stock with BBK cold air intake,B series Ford Racing cam,flowmasters,and alot more to come! |
09-01-2008, 09:18 PM | #9 |
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4.10's should suit you nicely then. Unless of course you do a lot of highway driving. Get a bigger intake like a Pro-Products, Edelbrock, Trick-flow, etc. and you'll really be happy!
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09-02-2008, 10:19 AM | #10 |
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If you hae a Ford Motosports catalog, it has a table in it that shows all the different speed-o gears (tranmission driven and drive) along with the rear end gear.
I have one at home, so I can post later unless someone beats me to it.
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