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Old May 21, 2020 | 05:36 PM
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1979 c6

So I just rebuilt the 79 f250’s c6 and when I seated the torque converter it spins great, like butter to the right(clockwise) but will not spin left. I have rebuilt tons of newer trans (6f35’s, 6f55’s, 5r55s) and when I have done them the converter spins freely in either direction. Idk if this is an inherent trait with a c6? Feels like a one way clutch. Of coarse I didn’t spin the converter back and worth when I removed so idk if this is normal or not. Everywhere I search has to do with seating it and making sure it doesn’t bind when installing to motor but none have any info on rotation. Thanks for any help
 
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Old May 21, 2020 | 06:40 PM
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Originally Posted by Lds79ford
So I just rebuilt the 79 f250’s c6 and when I seated the torque converter it spins great, like butter to the right(clockwise) but will not spin left. I have rebuilt tons of newer trans (6f35’s, 6f55’s, 5r55s) and when I have done them the converter spins freely in either direction. Idk if this is an inherent trait with a c6? Feels like a one way clutch. Of coarse I didn’t spin the converter back and worth when I removed so idk if this is normal or not. Everywhere I search has to do with seating it and making sure it doesn’t bind when installing to motor but none have any info on rotation. Thanks for any help
I think it should spin freely both ways , doesn't sound right
 
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Old May 21, 2020 | 07:15 PM
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I've got a 1979 C6 from a 2 wheel drive in the shed, it turns smoothly both directions.
 
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Old May 21, 2020 | 07:51 PM
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Great, I don’t know why then it won’t spin the one way, I guess I’ll take it back apart Sunday thanks
 
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Old May 21, 2020 | 08:00 PM
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I would check the torque converter first and make sure it has seated all the way down
 
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