700-R4 how to tell if it is lock up or not

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Jul 15, 2002 | 06:11 PM

87GTA383

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700-R4 how to tell if it is lock up or not

i have a 700 r4 trans and i need a torque convertor for my 383 stroker. i have to find out whether or not it is a lock up or not, does anybody know how i can easily find that out?

Thanks

Jul 15, 2002 | 06:54 PM

jamesbern

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From: kingfisher, ok

They just want to know if you would like to retain the lockup, yours is a lockup, but you could have a converter without that option.

Jul 16, 2002 | 06:30 AM

phatkat64

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From: Sahuarita, AZ

Car: 1991 Camaro RS

Engine: L03 305 TBI, nearly stock

Transmission: 700R4, stock

Axle/Gears: 3.23 out of a V6/5 speed car.

If you have 2.73's, or even 3.08 gears without a lockup convertor, you can risk overheating the tranny with excessive slippage (dynaflow effect) at crusing speeds.