I
would absolutely expect a junkyard to know whether it's a 8.2 or 8.5. I'd
say it's their business to know!
I
would also agree with what others have already said -- unless you're building a
stout big-block running on slicks, a decent 8.5 10-bolt should withstand a
lot of abuse. Look at most of your 11 and 12 second GN's -- most still
have 8.5 10-bolts.
You
can't go wrong with a 12-bolt, other than price. I have a 12-second
small-block powered '70 running slicks and a 12-bolt and I do quite a bit of
drag racing. No problems since I put it in back in '94 or
'95. I run 3.55 gears on a 2-series carrier with a ring-gear spacer
and Moser stock-replacement axles (which are much beef-ier than stock). If
you want to run a 3-series gear in a 12-bolt, posi carriers are very hard
to find, unless you go aftermarket (Eaton or Auburn, etc). I think I paid
$150 for a 12-bolt housing, $180 for gears, $250 for Moser axles, Somewhere
between $100-200 for the 2-series carrier and then paid a local mechanic to
setup the gears. These prices were 10 years ago.
I seem
to remember when I was doing mine that the costs were similar to building a
10-bolt versus a 12-bolt. (items such as new ring/pinion, axles, bearing
kit, brand-new posi carrier) 10-bolts can be attractive if you find a
complete unit, in good shape, with a posi and a gear you like ready to bolt-in
to the car. I went with the 12-bolt knowing it would take anything that I
might throw at it, plus the potential re-sale factor. Some people aren't
convinced of the strength of a 10-bolt, but no one will question the
strength/durability of a 12-bolt.
I
guess all I'm saying is, unless you're making more than 500 HP, either should
work well, but if you're going to end up spending the same amount of money
re-furbishing it, you might as well spend the money on a
12-bolt.
-Dave
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of jason mcentee
Sent: Thursday, April 22, 2004 11:22 PM
To: The Chevelle Mailing List
Subject: Re: [Chevelle-list] Rear axleI think i will keep looking for the 12 bolt. The junkyard that has it is a few hundred miles away. i doubt that they would be able to tell me whether or not its an 8.5 or 8.2. Thanks guys.
Clint Hooper <[EMAIL PROTECTED]> wrote:What are your plans for your 71? If you're running a big block or plan to do any dragracing,I would keep looking for a 12 bolt.Clint Hooper
H&H Custom,owner
LT5 Registry Director
http://www.LT5Registry.net/
ACES #1650
http://dalesplace.com/misc/friends/clint/clint_hooper.htm----- Original Message -----From: jason mcenteeHello all, I have been looking for a 12 bolt rear axle assembly for my 71' project. I found a few in some junkyards but tey want $800.00 for a used posi- rear one. I plan on rebuilding the axle so I ave to invest more money into it. I found a 10 blot rear for $200.00 the other day. I like that price. Is there any disadvantages from going wit a 10 blot rater than a 12 ?Any elp would be appreciated. Thanks.
Do you Yahoo!?
Yahoo! Photos: High-quality 4x6 digital prints for 25"
