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hey there.. i have an 86 mustang thats had a turbo swap.. it has a c3 automatic transmission, and the stock one wheel peeler rear end.. im thinking about getting a posi with 2.73 gears.. would this be good in my car? please help... if you could also tell me what gears i have in there right now that would be great to cause then i can compare.. thanks again
 

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You want 3.73 gears. Not 2.73 gears. Not sure if that was a typo or not. You have an overdrive, so that should be a good gear for you. I will help your rpm's come up quicker therefore helping your boost get up quicker. If you aren't going to be on the highway any, you could even go taller.
 
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