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General Differential Questions
Questions about all other brand differentials.
Topics: 54

54 Topics

240 Posts

Last post How to properly check gear pa…
by 84hurstolds View the latest post
Tue Mar 02, 2021 8:34 am
10 Bolt Differential Questions
Topics: 206

206 Topics

1140 Posts

Last post Re: 1985 442 8.5" posi casing…
by monzaz View the latest post
Thu Feb 25, 2021 12:56 am
12 Bolt Differential Questions
Topics: 55

55 Topics

224 Posts

Last post Re: need a type o differential
by monzaz View the latest post
Sat Dec 28, 2019 12:04 am
Custom Differential Questions
Topics: 15

15 Topics

32 Posts

Last post Re: 1978 monte carlo 8.5 10 b…
by monzaz View the latest post
Wed Apr 27, 2016 5:57 am
Race Differential Questions
Topics: 5

5 Topics

9 Posts

Last post 9" FORD AT THE TRACK STOCK TH…
by monzaz View the latest post
Thu Mar 31, 2016 8:57 am

Active topics

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HOW DOES A DIFFERENTIAL WORK!!!!! DIFFERENTIALS 101

Last post by monzaz « Thu Dec 29, 2011 11:58 pm
Replies: 3
by monzaz » Mon Feb 16, 2009 10:08 am

3 Replies

8685 Views

Last post by monzaz
Thu Dec 29, 2011 11:58 pm
How to properly check gear pattern on a used gearset

Last post by 84hurstolds « Tue Mar 02, 2021 8:34 am

by 84hurstolds » Tue Mar 02, 2021 8:34 am

0 Replies

6 Views

Last post by 84hurstolds
Tue Mar 02, 2021 8:34 am
1985 442 8.5" posi casing shimming question

Last post by monzaz « Thu Feb 25, 2021 12:56 am
Replies: 3
by 84hurstolds » Sun Feb 21, 2021 2:55 pm

3 Replies

62 Views

Last post by monzaz
Thu Feb 25, 2021 12:56 am
76 Vega V8 Rear End

Last post by Mark in INdiana « Tue Aug 04, 2020 7:36 am
Replies: 5
by Mark in INdiana » Fri Jul 31, 2020 6:26 pm

5 Replies

2387 Views

Last post by Mark in INdiana
Tue Aug 04, 2020 7:36 am
Buick 1971 10 bolt 8.5 on el camino 1969

Last post by monzaz « Sun May 17, 2020 10:50 am
Replies: 11
by pb22bj » Wed May 13, 2020 7:45 am

11 Replies

5686 Views

Last post by monzaz
Sun May 17, 2020 10:50 am
1970 differential

Last post by ML70 « Thu May 14, 2020 1:20 pm
Replies: 2
by ML70 » Tue May 12, 2020 1:02 pm

2 Replies

1982 Views

Last post by ML70
Thu May 14, 2020 1:20 pm
BOP possibilities

Last post by monzaz « Tue May 05, 2020 10:46 pm
Replies: 24
by stevieray » Sun Feb 07, 2016 7:12 pm
1

2
24 Replies

21614 Views

Last post by monzaz
Tue May 05, 2020 10:46 pm
1987 G body 8.5 posi

Last post by Edward « Tue May 05, 2020 12:37 pm
Replies: 2
by Edward » Mon May 04, 2020 7:53 pm

2 Replies

1854 Views

Last post by Edward
Tue May 05, 2020 12:37 pm
76 monza

Last post by monzaz « Fri May 01, 2020 9:17 am
Replies: 4
by 1976monza350 » Wed Apr 29, 2020 8:59 pm

4 Replies

2470 Views

Last post by monzaz
Fri May 01, 2020 9:17 am
'70 Olds Cutlass Supreme - Rear Upgrade Options

Last post by monzaz « Thu Apr 23, 2020 9:24 pm
Replies: 8
by tgilligan » Fri Apr 17, 2020 11:23 pm

8 Replies

4354 Views

Last post by monzaz
Thu Apr 23, 2020 9:24 pm
Cutlass 8.5 Axles

Last post by monzaz « Sun Mar 01, 2020 7:38 pm
Replies: 16
by Mike H. » Sat Jan 23, 2016 5:16 pm
1

2
16 Replies

15486 Views

Last post by monzaz
Sun Mar 01, 2020 7:38 pm
10 Bolt BOP Identification and Question

Last post by monzaz « Thu Feb 20, 2020 1:25 pm
Replies: 6
by guller » Thu Feb 06, 2020 12:59 pm

6 Replies

3527 Views

Last post by monzaz
Thu Feb 20, 2020 1:25 pm
need a type o differential

Last post by monzaz « Sat Dec 28, 2019 12:04 am
Replies: 1
by jopa200 » Fri Dec 27, 2019 9:33 pm

1 Replies

2542 Views

Last post by monzaz
Sat Dec 28, 2019 12:04 am
GREAT DRIVE SHAFT 101 ANGLE EXPLAINATION

Last post by monzaz « Thu Dec 12, 2019 5:29 pm

by monzaz » Thu Dec 12, 2019 5:29 pm

0 Replies

2837 Views

Last post by monzaz
Thu Dec 12, 2019 5:29 pm
10 bolt 8.2 BOP posi ID for 2 3 4 series carriers safety track

Last post by monzaz « Wed Dec 11, 2019 7:17 pm

by monzaz » Wed Dec 11, 2019 7:17 pm

0 Replies

1832 Views

Last post by monzaz
Wed Dec 11, 2019 7:17 pm
Buick "B" BOP from 68 Skylark

Last post by monzaz « Thu Oct 31, 2019 8:57 pm
Replies: 12
by NoYahoo » Sat Jun 22, 2019 7:28 am

12 Replies

7019 Views

Last post by monzaz
Thu Oct 31, 2019 8:57 pm
Gearing and Posi for 8.2" 'B' Buick Skylark Rear

Last post by monzaz « Sun Jul 21, 2019 3:07 pm
Replies: 1
by lcrken » Wed Jul 10, 2019 3:04 pm

1 Replies

2535 Views

Last post by monzaz
Sun Jul 21, 2019 3:07 pm
69 Lemans Safe T Trak

Last post by carbs69lemans « Tue Jul 09, 2019 12:31 pm
Replies: 2
by carbs69lemans » Thu Jul 04, 2019 1:22 pm

2 Replies

2758 Views

Last post by carbs69lemans
Tue Jul 09, 2019 12:31 pm
Need some parts/part numbers for 8.5 axle rebuild

Last post by monzaz « Tue Jul 09, 2019 8:19 am
Replies: 1
by 68lemans462 » Mon Jul 08, 2019 9:17 am

1 Replies

2174 Views

Last post by monzaz
Tue Jul 09, 2019 8:19 am
ZG 3.36 rear end help

Last post by monzaz « Wed Jun 26, 2019 7:51 am
Replies: 5
by binskyhere » Fri Jun 21, 2019 7:12 pm

5 Replies

4148 Views

Last post by monzaz
Wed Jun 26, 2019 7:51 am
Axle Offset

Last post by monzaz « Thu Apr 18, 2019 8:44 am
Replies: 5
by punkin » Sun Apr 14, 2019 11:03 am

5 Replies

4841 Views

Last post by monzaz
Thu Apr 18, 2019 8:44 am
Spring perch

Last post by monzaz « Sun Apr 14, 2019 10:27 am
Replies: 1
by Oldsman70 » Fri Apr 12, 2019 5:24 pm

1 Replies

2529 Views

Last post by monzaz
Sun Apr 14, 2019 10:27 am
10 bolt 323 gears for 72 v code

Last post by monzaz « Fri Feb 15, 2019 8:40 am
Replies: 1
by 455M20 » Thu Feb 14, 2019 11:31 am

1 Replies

2655 Views

Last post by monzaz
Fri Feb 15, 2019 8:40 am
Olds Type 'O' casting date

Last post by monzaz « Fri Dec 14, 2018 11:16 pm
Replies: 1
by GasRUp » Fri Dec 14, 2018 1:53 pm

1 Replies

2706 Views

Last post by monzaz
Fri Dec 14, 2018 11:16 pm
Forged vs. Cast Axle Identification (BOP 8.2)

Last post by monzaz « Sun Oct 21, 2018 12:21 pm
Replies: 4
by 93Octane » Sun Oct 14, 2018 7:42 am

4 Replies

5247 Views

Last post by monzaz
Sun Oct 21, 2018 12:21 pm
68 and up a body Chevy 12 width verses 65 Catalina width.

Last post by monzaz « Sat Sep 01, 2018 8:58 am
Replies: 1
by 652plus2 » Fri Aug 31, 2018 11:35 pm

1 Replies

3259 Views

Last post by monzaz
Sat Sep 01, 2018 8:58 am
12 bolt ring gear 10 bolt cover/ 12 bolt chevy

Last post by monzaz « Tue Aug 28, 2018 12:47 am
Replies: 1
by 652plus2 » Mon Aug 27, 2018 2:24 pm

1 Replies

3240 Views

Last post by monzaz
Tue Aug 28, 2018 12:47 am
1965 Pontiac 2+2 rear end gears

Last post by monzaz « Wed Aug 08, 2018 8:49 pm
Replies: 1
by 652plus2 » Tue Aug 07, 2018 9:01 am

1 Replies

3393 Views

Last post by monzaz
Wed Aug 08, 2018 8:49 pm
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

5071 Views

Last post by monzaz
Mon May 28, 2018 5:39 pm
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

4934 Views

Last post by monzaz
Wed May 02, 2018 7:32 am
1965 Pontiac tempest 8.2 10 bolt

Last post by monzaz « Mon Apr 30, 2018 10:28 pm
Replies: 5
by 1965 442 » Wed Apr 25, 2018 11:26 am

5 Replies

6021 Views

Last post by monzaz
Mon Apr 30, 2018 10:28 pm
65 rear axle question

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

5 Replies

7248 Views

Last post by monzaz
Wed Mar 14, 2018 1:01 pm
New rear end

Last post by monzaz « Mon Feb 05, 2018 10:26 am
Replies: 4
by Islanddean » Wed Jan 31, 2018 11:23 am

4 Replies

6824 Views

Last post by monzaz
Mon Feb 05, 2018 10:26 am
8.5 Auburn Diff

Last post by monzaz « Sat Nov 04, 2017 5:39 pm
Replies: 3
by Bigpig455 » Wed Oct 18, 2017 1:43 pm

3 Replies

5545 Views

Last post by monzaz
Sat Nov 04, 2017 5:39 pm
Rear rebuild in Maryland

Last post by monzaz « Wed Oct 25, 2017 5:31 pm
Replies: 1
by dal290la@yahoo.com » Wed Oct 25, 2017 12:48 pm

1 Replies

3821 Views

Last post by monzaz
Wed Oct 25, 2017 5:31 pm
70 Buick GS 10 bolt 8.2

Last post by monzaz « Mon Oct 02, 2017 11:06 pm
Replies: 2
by Mike h » Mon Oct 02, 2017 9:18 am

2 Replies

4451 Views

Last post by monzaz
Mon Oct 02, 2017 11:06 pm
BIG thanks

Last post by monzaz « Thu Sep 14, 2017 12:19 am
Replies: 1
by Daniel828 » Sun Sep 03, 2017 9:07 pm

1 Replies

4438 Views

Last post by monzaz
Thu Sep 14, 2017 12:19 am
71 Buick 8.5

Last post by monzaz « Fri Aug 18, 2017 9:45 pm
Replies: 10
by Daniel828 » Thu Jun 29, 2017 5:54 pm

10 Replies

11836 Views

Last post by monzaz
Fri Aug 18, 2017 9:45 pm
8.2 posi

Last post by monzaz « Mon Aug 14, 2017 12:01 am
Replies: 3
by buickman7076 » Tue Jun 27, 2017 10:51 am

3 Replies

6257 Views

Last post by monzaz
Mon Aug 14, 2017 12:01 am
'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

4746 Views

Last post by monzaz
Thu Jul 27, 2017 8:00 am
8.5 switch from 2:73 to 3:42 gears

Last post by monzaz « Mon Jul 10, 2017 8:32 am
Replies: 4
by 73 Survivor » Tue Jul 04, 2017 11:57 am

4 Replies

6706 Views

Last post by monzaz
Mon Jul 10, 2017 8:32 am
GM 8.5"

Last post by monzaz « Thu Jun 08, 2017 12:14 pm
Replies: 1
by a2race@yahoo.com » Mon Jun 05, 2017 10:30 am

1 Replies

4398 Views

Last post by monzaz
Thu Jun 08, 2017 12:14 pm
10 bolt 8.2 BOP axle housing pins

Last post by Crankor « Fri May 19, 2017 7:54 pm
Replies: 8
by Crankor » Wed May 17, 2017 6:36 pm

8 Replies

9846 Views

Last post by Crankor
Fri May 19, 2017 7:54 pm
G body 8.5

Last post by monzaz « Mon May 15, 2017 9:25 pm
Replies: 1
by Quick308 » Mon May 15, 2017 2:31 pm

1 Replies

4331 Views

Last post by monzaz
Mon May 15, 2017 9:25 pm
1972 GTO Rear End

Last post by monzaz « Mon May 15, 2017 12:57 pm
Replies: 1
by KLAUBERM » Thu May 11, 2017 10:01 am

1 Replies

4218 Views

Last post by monzaz
Mon May 15, 2017 12:57 pm
30 spline 10 bolt

Last post by monzaz « Mon May 08, 2017 11:50 am
Replies: 1
by agetnt9 » Thu May 04, 2017 3:31 pm

1 Replies

4309 Views

Last post by monzaz
Mon May 08, 2017 11:50 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

5439 Views

Last post by monzaz
Mon Apr 24, 2017 8:31 pm
Help ID my rear end

Last post by monzaz « Mon Apr 24, 2017 8:19 pm
Replies: 2
by 03RedWing » Sun Apr 23, 2017 8:51 pm

2 Replies

5660 Views

Last post by monzaz
Mon Apr 24, 2017 8:19 pm
type "O" rear end?

Last post by monzaz « Mon Apr 24, 2017 7:49 pm
Replies: 12
by hogdog666 » Sun Mar 08, 2009 10:13 pm

12 Replies

16925 Views

Last post by monzaz
Mon Apr 24, 2017 7:49 pm
BOP part interchangeability

Last post by 14hbnelson « Thu Apr 20, 2017 11:06 pm
Replies: 2
by 14hbnelson » Wed Apr 19, 2017 6:17 pm

2 Replies

5043 Views

Last post by 14hbnelson
Thu Apr 20, 2017 11:06 pm

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