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post #1 of 6 (permalink) Old 06-14-2005, 11:57 PM Thread Starter
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4R70W question for my 97

whenever I WOT my auto with O/D off in my 97 GT once I get to about 85-90mph it always turns back on automatically. I'm not sure if this is a problem or what. I'm curious because my brothers 99GT does not do this.

Any input would be great!




-James

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post #2 of 6 (permalink) Old 06-15-2005, 05:05 PM Thread Starter
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anyone?

DD: MG 03 Cobra, 21psi M122 (GT500) blower swap


99 GT Auto Roller for sale 10 pt Wolfe Racecraft cage, 16gal fuel cell, 90% of interior, just needs rear seat delete, rolls on stock suspension except tubular k & MM C&C plates $3500
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post #3 of 6 (permalink) Old 06-15-2005, 05:40 PM
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Quote:
Originally Posted by 46cougrrr
whenever I WOT my auto with O/D off in my 97 GT once I get to about 85-90mph it always turns back on automatically. I'm not sure if this is a problem or what. I'm curious because my brothers 99GT does not do this.

Any input would be great!




-James
Sounds like the car has a non-stock gear ratio,and a stock tune.
The stock EEC programming commands an upshift on some cars whether you have it locked out or not.
JL

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'05 F250 Crewcab 2WD-6.8L V10/5R110/4.10
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post #4 of 6 (permalink) Old 06-16-2005, 01:29 PM Thread Starter
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well, it doesn't feel like it?

DD: MG 03 Cobra, 21psi M122 (GT500) blower swap


99 GT Auto Roller for sale 10 pt Wolfe Racecraft cage, 16gal fuel cell, 90% of interior, just needs rear seat delete, rolls on stock suspension except tubular k & MM C&C plates $3500
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post #5 of 6 (permalink) Old 06-16-2005, 03:40 PM
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Quote:
Originally Posted by 46cougrrr
feel
That says plenty.
Count the revolutions of the driveshaft when turning the wheels or pull the cover and check the gearset to be sure.
Feel is a poor way to determine if the car has non-stock gears.
JL

1997 Thunderbird-4.6L/[email protected]
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post #6 of 6 (permalink) Old 06-16-2005, 07:06 PM Thread Starter
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Bear in mind that it was my younger brother asking questions in my name. I know how to calculate gear ratio. I appreciate the help however. The rear end is stamped 3.08 T-Loc. That in no way guarantees that it is still stock, but I doubt it's been changed considering the labor involved to swap and the condition of the car overall in which it was purchased.

-Jad

DD: MG 03 Cobra, 21psi M122 (GT500) blower swap


99 GT Auto Roller for sale 10 pt Wolfe Racecraft cage, 16gal fuel cell, 90% of interior, just needs rear seat delete, rolls on stock suspension except tubular k & MM C&C plates $3500
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