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Hello
I am getting a 1997 thunderbird. What transmission 4R70W?
If so can I race this transmission with-out a computer?

I race a circle track car. we run in second gear due to the gear rule. I have a 351w & a c4. Would like the 4R70W for the gear ratio advantage.

If it will work, can the overdrive be removed?
Or can the second gear cluster fit in my C4 or My FMX?

PAUL
 

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The 4R70W interanls (not sure which ones) will fit in an AOD, i know that...

If you ran a C6, I hear E4OD internals work, for the same "wide ratio"
 

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Johnny Five is Alive, TCCoAAC Member
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I am no expert, but if your running circle track. And you just want one gear, i would assume you could probably build a simple circuit to force full line pressure, and second gear ( or manual 2nd, which would give engine breaking) this solution probably would be simple, just watch the trans fluid temperature. You could probably even command a TC Lockup on strait aways. this would pretty much result in less tc slippage from not being engaged.
 
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