12 Bolt Differential Questions

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JD Race Version 4

Last post by jdraceco « Fri Nov 16, 2012 9:21 pm
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1970 12 Bolt "O" Detroit Truetrac

Last post by monzaz « Mon May 28, 2018 5:39 pm
Replies: 3
by davel » Tue May 22, 2018 10:29 am

3 Replies

166 Views

Last post by monzaz View the latest post
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67 Catalina

Last post by monzaz « Wed May 02, 2018 7:32 am
Replies: 3
by 67cat » Mon Apr 30, 2018 8:59 pm

3 Replies

160 Views

Last post by monzaz View the latest post
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65 rear axle question

Last post by monzaz « Wed Mar 14, 2018 1:01 pm
Replies: 5
Attachment(s) by Classics65 » Sat Apr 15, 2017 8:27 pm

5 Replies

1085 Views

Last post by monzaz View the latest post
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'70 12 bolt "O" strengthening.

Last post by monzaz « Thu Jul 27, 2017 8:00 am
Replies: 1
by mr.grim » Mon Jul 10, 2017 12:04 pm

1 Replies

997 Views

Last post by monzaz View the latest post
Thu Jul 27, 2017 8:00 am
12 Bolt Cover Olds rear end

Last post by monzaz « Mon Apr 24, 2017 8:31 pm
Replies: 2
by 70supreme » Sun Apr 23, 2017 1:34 pm

2 Replies

1170 Views

Last post by monzaz View the latest post
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Opinions/Parts

Last post by monzaz « Tue Feb 28, 2017 10:31 am
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by Utah Boatail » Mon Feb 27, 2017 3:24 pm

1 Replies

803 Views

Last post by monzaz View the latest post
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12 bolt b body

Last post by monzaz « Mon Jan 30, 2017 5:55 pm
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by Lowrider » Wed Jan 25, 2017 1:51 am

3 Replies

1246 Views

Last post by monzaz View the latest post
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Type O? Questions.

Last post by Seth « Mon Feb 22, 2016 4:16 pm
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by Seth » Wed Feb 17, 2016 8:37 am

4 Replies

10709 Views

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Chevy 12 bolt rear axle upgrade

Last post by Mark Demko « Sun Jan 03, 2016 7:25 pm
Replies: 2
Attachment(s) by Mark Demko » Fri Jan 01, 2016 6:37 am

2 Replies

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Posi springs

Last post by monzaz « Wed Jun 17, 2015 8:52 pm
Replies: 4
by muzzy » Sat Jun 13, 2015 5:12 pm

4 Replies

1941 Views

Last post by monzaz View the latest post
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12 Bolt Housing

Last post by steve69 « Wed Dec 17, 2014 11:46 am
Replies: 6
by steve69 » Fri Nov 21, 2014 6:13 pm

6 Replies

2308 Views

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Buick 12 bolt rear end problem

Last post by monzaz « Fri Oct 10, 2014 7:40 am
Replies: 6
by Ricky » Thu Oct 02, 2014 1:09 am

6 Replies

1996 Views

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EDB-30152 posi carrier--what's it from/what's it worth?

Last post by monzaz « Fri Sep 26, 2014 12:11 am
Replies: 3
by 66submarine » Sun Sep 14, 2014 11:38 pm

3 Replies

1398 Views

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Gear contact pattern

Last post by monzaz « Sun Aug 03, 2014 10:46 am
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by ScottRamsey » Sat Aug 02, 2014 11:59 am

1 Replies

1090 Views

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Olds Type "O" Rear posi conversion

Last post by monzaz « Wed Jun 25, 2014 10:54 am
Replies: 6
Attachment(s) by csouth » Mon Apr 02, 2012 3:03 pm

6 Replies

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Swapping out Olds 12 bolt for BOP 10 bolt

Last post by monzaz « Mon May 12, 2014 1:57 pm
Replies: 1
by lemans1 » Fri May 09, 2014 4:03 am

1 Replies

1420 Views

Last post by monzaz View the latest post
Mon May 12, 2014 1:57 pm
12 bolt ID

Last post by monzaz « Fri Mar 07, 2014 1:05 am
Replies: 17
1

2
by m_kulsziski » Thu Jul 06, 2006 9:14 pm
17 Replies

9496 Views

Last post by monzaz View the latest post
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1969 Olds rear end.

Last post by monzaz « Sat Feb 08, 2014 9:16 am
Replies: 5
Attachment(s) by plumbbob » Sun Jan 05, 2014 4:06 pm

5 Replies

2336 Views

Last post by monzaz View the latest post
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10-12 bolt gear ratios

Last post by monzaz « Thu Jan 30, 2014 1:42 pm
Replies: 1
by mtmay » Mon Jan 27, 2014 1:17 pm

1 Replies

1478 Views

Last post by monzaz View the latest post
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12 Bolt for G Body

Last post by monzaz « Sun Jan 27, 2013 1:31 pm
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Attachment(s) by MWireman » Fri Jan 25, 2013 11:08 am

3 Replies

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Last post by monzaz View the latest post
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1968 442 axle bearings and seals

Last post by monzaz « Mon Dec 03, 2012 7:26 am
Replies: 7
Attachment(s) by als68442 » Mon Nov 26, 2012 12:20 pm

7 Replies

2563 Views

Last post by monzaz View the latest post
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Spring Perches

Last post by monzaz « Sat Sep 08, 2012 7:47 pm
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by 71MONTE4YA » Thu Sep 06, 2012 4:21 pm

3 Replies

2267 Views

Last post by monzaz View the latest post
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Jim.

Last post by monzaz « Mon Jul 16, 2012 9:43 pm
Replies: 1
by slow72monte » Mon Jul 09, 2012 2:23 pm

1 Replies

1626 Views

Last post by monzaz View the latest post
Mon Jul 16, 2012 9:43 pm
8.75 Posi Carrier in 8.875 Full Size

Last post by monzaz « Fri Jul 06, 2012 7:35 am
Replies: 3
by MikeMike123 » Tue Jul 03, 2012 2:26 pm

3 Replies

2573 Views

Last post by monzaz View the latest post
Fri Jul 06, 2012 7:35 am
12 bolt 9.3

Last post by monzaz « Sun Feb 05, 2012 4:22 pm
Replies: 3
by glenn4spgs » Sat Feb 04, 2012 8:38 pm

3 Replies

2160 Views

Last post by monzaz View the latest post
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1970 olds 98 12 bolt diff.

Last post by monzaz « Sun Oct 02, 2011 1:54 pm
Replies: 4
Attachment(s) by 1970 Olds 98 » Fri Sep 30, 2011 9:51 am

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Last post by monzaz View the latest post
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1967 pontiac catalina

Last post by monzaz « Tue Aug 16, 2011 2:13 pm
Replies: 1
Attachment(s) by navarrat » Sat Aug 13, 2011 1:20 am

1 Replies

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Last post by monzaz View the latest post
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O Type

Last post by monzaz « Fri Aug 12, 2011 8:32 pm
Replies: 6
by robs70monte » Sat Aug 06, 2011 5:46 pm

6 Replies

2820 Views

Last post by monzaz View the latest post
Fri Aug 12, 2011 8:32 pm
12 bolt carrier............for what?

Last post by monzaz « Tue Apr 05, 2011 3:43 pm
Replies: 1
Attachment(s) by WMACHINE » Mon Apr 04, 2011 2:10 pm

1 Replies

1884 Views

Last post by monzaz View the latest post
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What makes a 12 bolt a 12 bolt??? what bolts count

Last post by monzaz « Mon Mar 21, 2011 1:54 pm
Replies: 1
by monzaz » Mon Mar 21, 2011 1:41 pm

1 Replies

1887 Views

Last post by monzaz View the latest post
Mon Mar 21, 2011 1:54 pm
Posi differential ID

Last post by monzaz « Fri Feb 25, 2011 4:32 pm
Replies: 11
Attachment(s) by Frankie » Wed Jan 14, 2009 1:30 am

11 Replies

6532 Views

Last post by monzaz View the latest post
Fri Feb 25, 2011 4:32 pm
NEW PRODUCT NEW PRODUCT!

Last post by monzaz « Sat Jan 15, 2011 5:41 pm

Attachment(s) by monzaz » Sat Jan 15, 2011 5:41 pm

0 Replies

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Rear disc brake conversion

Last post by monzaz « Mon Jan 03, 2011 9:22 am
Replies: 1
by Hoonbash » Thu Dec 30, 2010 8:54 am

1 Replies

1741 Views

Last post by monzaz View the latest post
Mon Jan 03, 2011 9:22 am
12 BOLT S-10 STREET STRIP REAR DIFFERENTIALS

Last post by monzaz « Wed Aug 18, 2010 9:32 pm
Replies: 9
Attachment(s) by monzaz » Wed Dec 17, 2008 10:39 am

9 Replies

4882 Views

Last post by monzaz View the latest post
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TIME

Last post by monzaz « Fri Aug 13, 2010 9:41 am

by monzaz » Fri Aug 13, 2010 9:41 am

0 Replies

16558 Views

Last post by monzaz View the latest post
Fri Aug 13, 2010 9:41 am
Chevelle 12 Bolt Identification and Application Question

Last post by monzaz « Wed May 12, 2010 9:29 pm
Replies: 3
Attachment(s) by clm69z28 » Mon May 10, 2010 8:40 pm

3 Replies

2357 Views

Last post by monzaz View the latest post
Wed May 12, 2010 9:29 pm
12 bolt evaluation and parts

Last post by monzaz « Sun Apr 04, 2010 10:37 am
Replies: 9
Attachment(s) by GSDrew » Mon Feb 23, 2009 2:02 pm

9 Replies

3926 Views

Last post by monzaz View the latest post
Sun Apr 04, 2010 10:37 am
Please comment on condition of carrier and gears

Last post by monzaz « Mon Mar 08, 2010 9:39 pm
Replies: 1
by rustyrelic » Fri Mar 05, 2010 12:57 pm

1 Replies

1684 Views

Last post by monzaz View the latest post
Mon Mar 08, 2010 9:39 pm
12 Bolt carrier ID.

Last post by monzaz « Mon Nov 16, 2009 8:07 pm
Replies: 3
Attachment(s) by BigBlockMan » Thu Nov 12, 2009 7:55 pm

3 Replies

2728 Views

Last post by monzaz View the latest post
Mon Nov 16, 2009 8:07 pm
1970' Oldsmobile full size 12 bolt

Last post by monzaz « Sat Oct 31, 2009 10:19 pm
Replies: 5
Attachment(s) by BigBlockMan » Thu Sep 24, 2009 7:56 pm

5 Replies

4977 Views

Last post by monzaz View the latest post
Sat Oct 31, 2009 10:19 pm
66 Pontiac Grand Prix 12 bolt posi

Last post by monzaz « Fri Jul 10, 2009 10:49 pm
Replies: 1
by motocip » Mon Jul 06, 2009 9:11 am

1 Replies

1944 Views

Last post by monzaz View the latest post
Fri Jul 10, 2009 10:49 pm
Help with casting number 393820

Last post by monzaz « Sun Jun 21, 2009 2:20 pm
Replies: 3
Attachment(s) by Steve » Mon Jun 15, 2009 8:36 pm

3 Replies

2714 Views

Last post by monzaz View the latest post
Sun Jun 21, 2009 2:20 pm
33 splines posi

Last post by monzaz « Wed Feb 11, 2009 9:41 pm
Replies: 5
Attachment(s) by Malibu ss 64 » Sat Jan 24, 2009 10:43 am

5 Replies

2505 Views

Last post by monzaz View the latest post
Wed Feb 11, 2009 9:41 pm
12 bolt pickup truck to car?

Last post by monzaz « Thu Jan 08, 2009 11:40 pm
Replies: 1
Attachment(s) by carnutt » Wed Jan 07, 2009 12:11 pm

1 Replies

2124 Views

Last post by monzaz View the latest post
Thu Jan 08, 2009 11:40 pm
MOSER 12 BOLT PICTURES

Last post by monzaz « Wed Jul 16, 2008 8:48 am

Attachment(s) by monzaz » Wed Jul 16, 2008 8:48 am

0 Replies

6373 Views

Last post by monzaz View the latest post
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Non posi to posi - What is needed?

Last post by monzaz « Tue Jan 09, 2007 1:41 pm
Replies: 1
by magisnyc » Fri Jan 05, 2007 11:30 pm

1 Replies

1927 Views

Last post by monzaz View the latest post
Tue Jan 09, 2007 1:41 pm
What carrier do I buy

Last post by monzaz « Thu Dec 28, 2006 1:36 pm
Replies: 1
by m_kulsziski » Sun Dec 24, 2006 1:50 pm

1 Replies

2172 Views

Last post by monzaz View the latest post
Thu Dec 28, 2006 1:36 pm
do eaton 12 bolt and 8.5 rears share spider gears?

Last post by monzaz « Wed Nov 22, 2006 2:02 am
Replies: 1
by tlowe » Thu Jul 27, 2006 10:35 am

1 Replies

2025 Views

Last post by monzaz View the latest post
Wed Nov 22, 2006 2:02 am
Carrier question

Last post by monzaz « Wed Nov 22, 2006 1:27 am
Replies: 1
by m_kulsziski » Tue Aug 15, 2006 6:45 pm

1 Replies

2157 Views

Last post by monzaz View the latest post
Wed Nov 22, 2006 1:27 am
68 cutlass rear end

Last post by monzaz « Fri Jul 14, 2006 11:47 pm
Replies: 1
by 68cutnut » Fri Jul 14, 2006 10:15 pm

1 Replies

1870 Views

Last post by monzaz View the latest post
Fri Jul 14, 2006 11:47 pm

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