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Discussion Starter #1
80% street car. 65 Chevy II. 3000 lbs. LS turbo combo, low 7's at crank. Billet 200R4 with a brake, 3.30 gear, 28"tall DR. Do I need to, and will it hold up on the street, run a pro gear?
 

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yes what rear? id recommend a 7.5 out of an 80's camaro, strongest unit available for your app.
 

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Discussion Starter #4
Fab 9. I just want to know A, will a pro gear stand up on the street........and I mean 1000 miles a year on the street plus a half dozen trips to the track, or, will a street gear take this kind of power?

 

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Discussion Starter #5
Anyone running a pro gear on the street with decent results..........or visa versa?
 

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have an 81 camaro 10 bolt 8 1/2, full spool w/ a 700r4. makes about 1k on bottle. Had her in there for 6-7 years. Mostly driven to car shows and some drag. No problems.....so far.
 

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I ran street gears in a 12 bolt in my Vega, with a 331, it went from 12.40s street trim, to 11.90s with slicks, (3.73s, 4.10s, 4.56s, 4.88s, all used gears), then I swapped in a 427 I built, (back to the same 4.10s), went 11.50s street trim, 9.70s on slicks, uncapped and some spray. 1000s of runs, never broke it. I put over 150 K on it with the 327 over about 14 years time, and about 20 k on it with the 427. Sold the car, it got parted out, the rear end came back to me in a 68 Camaro with an axle tube twisted loose, I fixed it, backhalfed the car, with 14x32, tuned the 454 with a 150 shot, it FINALLY broke a spider gear, then I put a spool in it...same gear....
 
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