Thread: Stock Axle Integrity
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05-11-2005 03:05 PM #1
Stock Axle Integrity
Does anybody know how much power the axles in my rear end can handle? It's a 73 nova with the stock 10 bolt 8.5" 28 spline rear end. I was thinking about putting a Powertrax no-slip locker in it. I'm rebuilding the engine and I don't want to be twisting axles.1973 Chevy Nova
Mild 350
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05-11-2005 06:54 PM #2
I wouldn't waste a lot of money on the 10 bolt. From watching the chebbie guys at the digs, much more than about 350 horse tends to gernade the 10 bolts, less if it's a 4 speed. Might want to upgrade to a 12 bolt, or better yet a 9" Ford. Currie makes tham with all the brackets to bolt up to your suspension.Yesterday is history, tomorrow is a mystery, Live for Today!
Carroll Shelby
Learning must be difficult for those who already know it all!!!!
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05-11-2005 06:58 PM #3
That's good advice Dave.
Chevy, you'll hear guys telling you that they have run 600 hp and a 4-speed, dumping the clutch, yadda, yadda, yadda and their 10-bolt has held up for 20 years, yadda, yadda, yadda. If you want to do it right the first time, follow Dave's advice.PLANET EARTH, INSANE ASYLUM FOR THE UNIVERSE.
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05-11-2005 07:09 PM #4
Thanks Tech. Hey chebbie, when them guys tell you them 10 bolts taking 600 HP, ask them to start the fairy tale with "Once upon a time in a land far, far away".Yesterday is history, tomorrow is a mystery, Live for Today!
Carroll Shelby
Learning must be difficult for those who already know it all!!!!
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05-11-2005 07:17 PM #5
i have to agree with the rest of the guys , my build has a rebuilt(came with parts car) 10 bolt rearend behind a 500 caddy. ill let you know how long it lasts cause once i get the car on the road, i have 2 12 bolts i can put under it once it grenades.
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05-12-2005 11:01 AM #6
my engine will be putting out less than 350 hp. I can't really afford a new rear end right now.1973 Chevy Nova
Mild 350
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05-12-2005 02:32 PM #7
There is a difference in the 10 bolt chevys. The 8.5 inch is much stronger than the I think the other 8.25 inch. The smaller 10 will break pretty easy but I know quit a few folks that run the 8.5 with some serious HP and swear by um. I've know one guy that says it's held up better than a 12 bolt, but I take that with a grain of salt.
For what you say you have I don't think you will ever have a problem. Just pick you up a better rear end later when you can afford it.
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05-12-2005 03:30 PM #8
Originally posted by canadianal
i have to agree with the rest of the guys , my build has a rebuilt(came with parts car) 10 bolt rearend behind a 500 caddy. ill let you know how long it lasts cause once i get the car on the road, i have 2 12 bolts i can put under it once it grenades.
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05-12-2005 03:51 PM #9
At under 350 hp, your ten bolt should be ok, just don't pound on it constantly and it should last.Yesterday is history, tomorrow is a mystery, Live for Today!
Carroll Shelby
Learning must be difficult for those who already know it all!!!!
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05-12-2005 07:57 PM #10
alright, thanx everybody1973 Chevy Nova
Mild 350
Welcome to CHR. I think that you need to hook up your vacuum advance. At part throttle when cruising you have less air and fuel in each cylinder, and the air-fuel mixture is not as densely packed...
MSD 8360 distributor vacuum advance