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02-05-2005, 12:20 PM
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10 bolt vs. 12 bolt.
I read some threads covering what 10 bolt is stronger.
Say I had a 54 chev. sedan (like I want) with a 454 powering it. What would be my best option for holding up; the 8.5 10 bolt, or the 12 bolt? I realize any axle can be stronger with the right parts, but I don't have thousands of dollars to drop into the axle. Also, locating the axles are also a problem where I live. So what wuold be my best bet for an axle to use. I would probably have some kind of traction aid in the axle too. I will be using this as a cruiser, and maybe the odd track run when I travel. Sorry if this has been covered, I couldn't find a question simular to this with my answer. Thanks! EDIT: I will also have a th-400 to power it, I forgot to add. 
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02-05-2005, 01:24 PM
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Generally speaking they can be close in strength. However, like you said you don't want to dump lots of money into the rear. I would say that more most mild and even some worked up smaller engines the 8.5 will hold up as long as it isn't pounded daily. If you want a 454 in front of it that has any type of upgrades then I would say you want a 12 bolt. It is just stronger by nature. If I had to choose what to stick behind a big power plant it would either be a 9" or a 12 bolt.
Chris
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02-05-2005, 07:36 PM
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If the 8.5" 10 bolt is set up correctly it will handle the power,I've seen a guy running a super gas car through one and even another guy with a I-ROC sporting nitrous pulling wheel stands to the tune of 11.11@117 with only a 7.5" rearend. Just talk to Mosers or someone like that and they won't steer you wrong.LOL
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02-05-2005, 07:44 PM
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12 bolts are definately stronger & more heavy duty, it was all I could do to move that around by myself.
I swapped that out for a 10 bolt posi just because the price was right & mine needed new axles. The 10 bolt held up fine in My Elcamino, I never had it dyno'd but the 350 in it was pretty stout. (.030 over 228/480 crane cam, roller tipped rockers, balanced/blueprinted, headers, edlebrock performer intake, carter afb) Mind you this wasn't an every day racer
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02-05-2005, 10:32 PM
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I won't bother asking what cars the 12bolt came in because I stillneed to search, but are parts readily availbe for the 12 bolt?
I would go to a 9inch rear, but they are even more rare around here. Plus its a chev truck, so I wouldn't mind keeping it mostly chevy. thanks for the help.
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