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Discussion Starter · #1 ·
My stock limited slip stop working in my impala and I wanted to know what would be a good limited slip performance posi differential to go with????? Also what would be a good ring & pinion ratio set to go with too????? I use the car for a daily driver. I want it a little faster off the line, but i dont want to lose a lot on the mpg..........

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Discussion Starter · #3 ·
I'm still run a 255/50/ZR17....... What kind of differance would it be with 3.73
 

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For mostly street driving, I'd go with the Tru-trak and either 3.42 or 3.73 gears (3.42 if you do much highway driving). A higher stall (about 2800 with stock LT1) will give you a better launch on the street as well.
 

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Zexel Torsen with 3:42 gears
 
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