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General Differential Questions
Questions about all other brand differentials.
Topics: 55

55 Topics

243 Posts

Last post Re: Please Rate the Condition…
by monzaz View the latest post
Fri Dec 22, 2023 11:42 am
10 Bolt Differential Questions
Topics: 220

220 Topics

1238 Posts

Last post Re: 1975-Specific 7.5 5 lug s…
by monzaz View the latest post
Mon Mar 10, 2025 1:16 pm
12 Bolt Differential Questions
Topics: 63

63 Topics

266 Posts

Last post Re: Olds 9.3" 12 bolt or is it
by monzaz View the latest post
Sat Jun 01, 2024 2:30 pm
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

20321 Views

Last post by monzaz
Thu Dec 29, 2011 11:58 pm
1975-Specific 7.5 5 lug swap questions

Last post by monzaz « Mon Mar 10, 2025 1:16 pm
Replies: 6
by MONZA 75 » Thu Mar 06, 2025 5:06 am

6 Replies

5754 Views

Last post by monzaz
Mon Mar 10, 2025 1:16 pm
Pontiac 8.2 carrier

Last post by monzaz « Mon Mar 03, 2025 10:55 am
Replies: 5
by BigHook » Fri Feb 14, 2025 3:40 pm

5 Replies

2684 Views

Last post by monzaz
Mon Mar 03, 2025 10:55 am
8.5 spider gears

Last post by monzaz « Tue Jul 02, 2024 12:08 pm
Replies: 1
by Axle_Foley » Sat Jun 15, 2024 6:20 pm

1 Replies

3043 Views

Last post by monzaz
Tue Jul 02, 2024 12:08 pm
Olds 9.3" 12 bolt or is it

Last post by monzaz « Sat Jun 01, 2024 2:30 pm
Replies: 4
by chevy56 » Tue May 28, 2024 3:54 pm

4 Replies

9152 Views

Last post by monzaz
Sat Jun 01, 2024 2:30 pm
Oldsmobile type ‘O’ 12 bolt question

Last post by monzaz « Mon Apr 22, 2024 7:47 am
Replies: 17
by 67CSConvert455 » Thu Mar 28, 2024 11:07 pm
1

2
17 Replies

24904 Views

Last post by monzaz
Mon Apr 22, 2024 7:47 am
9.3 identification help

Last post by monzaz « Tue Feb 27, 2024 6:49 pm
Replies: 5
by EricW » Sun Dec 24, 2023 6:50 pm

5 Replies

13395 Views

Last post by monzaz
Tue Feb 27, 2024 6:49 pm
8.2 Buick posi Oil type

Last post by monzaz « Sat Jan 13, 2024 3:05 pm
Replies: 1
by 70supreme » Fri Jan 12, 2024 7:00 pm

1 Replies

4021 Views

Last post by monzaz
Sat Jan 13, 2024 3:05 pm
8.2. Buick Carrier Gear Pattern

Last post by monzaz « Thu Jan 04, 2024 11:54 am
Replies: 12
by 70supreme » Wed Dec 20, 2023 10:29 am

12 Replies

15964 Views

Last post by monzaz
Thu Jan 04, 2024 11:54 am
Please Rate the Condition & Viability of These Used Gears

Last post by monzaz « Fri Dec 22, 2023 11:42 am
Replies: 1
by jpetro » Wed Dec 20, 2023 10:48 pm

1 Replies

12163 Views

Last post by monzaz
Fri Dec 22, 2023 11:42 am
GM ring & pinion gear set

Last post by monzaz « Mon Nov 06, 2023 10:12 am
Replies: 7
by Axle_Foley » Sun Oct 29, 2023 12:47 pm

7 Replies

10851 Views

Last post by monzaz
Mon Nov 06, 2023 10:12 am
8.2 Buick Rear end Axle Bearings

Last post by 70supreme « Wed Nov 01, 2023 9:31 pm
Replies: 7
by 70supreme » Mon Oct 23, 2023 1:38 pm

7 Replies

11354 Views

Last post by 70supreme
Wed Nov 01, 2023 9:31 pm
Ringear bolts

Last post by monzaz « Mon Oct 30, 2023 2:10 pm
Replies: 1
by Malibu ss 64 » Thu Oct 19, 2023 10:36 am

1 Replies

9376 Views

Last post by monzaz
Mon Oct 30, 2023 2:10 pm
Posi id

Last post by monzaz « Thu Aug 24, 2023 10:28 pm
Replies: 2
by Malibu ss 64 » Mon Aug 21, 2023 1:22 pm

2 Replies

7416 Views

Last post by monzaz
Thu Aug 24, 2023 10:28 pm
30 splines c-clip axles

Last post by monzaz « Sat Aug 19, 2023 11:37 pm
Replies: 1
by Malibu ss 64 » Wed Aug 16, 2023 11:01 am

1 Replies

5740 Views

Last post by monzaz
Sat Aug 19, 2023 11:37 pm
1966-76 9.375" Oldsmobile 12 bolt question

Last post by monzaz « Thu Jun 08, 2023 9:47 am
Replies: 8
by funkhoss » Thu Jun 01, 2023 1:16 pm

8 Replies

13663 Views

Last post by monzaz
Thu Jun 08, 2023 9:47 am
76 monza

Last post by monzaz « Sun May 07, 2023 10:22 pm
Replies: 6
by 1976monza350 » Wed Apr 29, 2020 8:59 pm

6 Replies

18383 Views

Last post by monzaz
Sun May 07, 2023 10:22 pm
bop 8.2 gear swap

Last post by monzaz « Tue Aug 16, 2022 2:17 pm
Replies: 6
by jwhit » Mon Aug 15, 2022 12:12 pm

6 Replies

12519 Views

Last post by monzaz
Tue Aug 16, 2022 2:17 pm
Gear pattern

Last post by monzaz « Mon Aug 15, 2022 8:07 am
Replies: 14
by jdon88 » Wed Aug 10, 2022 4:20 pm

14 Replies

25171 Views

Last post by monzaz
Mon Aug 15, 2022 8:07 am
Axle Bearings

Last post by monzaz « Fri Aug 05, 2022 11:01 am
Replies: 2
by jdon88 » Wed Aug 03, 2022 8:00 pm

2 Replies

9226 Views

Last post by monzaz
Fri Aug 05, 2022 11:01 am
is it a Buick, an Olds or a Pontiac? Or all three

Last post by monzaz « Thu Jun 23, 2022 7:29 am
Replies: 3
by jud » Fri Jun 10, 2022 2:53 pm

3 Replies

9628 Views

Last post by monzaz
Thu Jun 23, 2022 7:29 am
Pinion seal leak

Last post by monzaz « Sun Jun 05, 2022 10:26 pm
Replies: 11
by Axle_Foley » Tue May 17, 2022 10:33 pm

11 Replies

18379 Views

Last post by monzaz
Sun Jun 05, 2022 10:26 pm
72 Cutlass Posi Options

Last post by monzaz « Sun Apr 03, 2022 7:27 am
Replies: 2
by aggrorider1 » Fri Feb 25, 2022 9:16 pm

2 Replies

9090 Views

Last post by monzaz
Sun Apr 03, 2022 7:27 am
12 Bolt Gears/Posi - Question

Last post by monzaz « Sun Oct 31, 2021 9:39 am
Replies: 1
by mphudak » Sun Oct 17, 2021 7:46 am

1 Replies

9942 Views

Last post by monzaz
Sun Oct 31, 2021 9:39 am
Chev car 12 bolt side hole spacing.

Last post by 95wagon « Fri Jun 11, 2021 9:12 pm

by 95wagon » Fri Jun 11, 2021 9:12 pm

0 Replies

8632 Views

Last post by 95wagon
Fri Jun 11, 2021 9:12 pm
How to properly check gear pattern on a used gearset

Last post by monzaz « Thu Mar 04, 2021 11:14 pm
Replies: 1
by 84hurstolds » Tue Mar 02, 2021 8:34 am

1 Replies

11538 Views

Last post by monzaz
Thu Mar 04, 2021 11:14 pm
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

11892 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

14827 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

27332 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

11408 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

74445 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

11552 Views

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

21082 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

49139 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

18836 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

11643 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

10731 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

11525 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

28577 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

12293 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

12791 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

10613 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

18281 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

18597 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

10841 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

11052 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

10826 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

17236 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

11197 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

12756 Views

Last post by monzaz
Tue Aug 28, 2018 12:47 am

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