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Author Topic: 10 bolt posi  (Read 767 times)

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Offline Jim

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10 bolt posi
« on: December 17, 2023, 08:54:45 AM »
Hi, I can get a chevelle 10 bolt posi rearend for my 65 skylark  what are the difference 's from the buick ?.Jim
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66 lesabre,68 Electra, 42special streetrod, multiple, chevs, 69 chevelle ss,67 skylark conv, 65 skylark ht,68 el Camino  and more , 65 skylarkgs

Offline WkillGS

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Re: 10 bolt posi
« Reply #1 on: December 18, 2023, 10:54:23 AM »
Lots of internal differences. It will bolt into the car tho. I think they use different u-joints, there are adapter u-joints avail.
The Chev uses c-clips to retain the axles, the Buick uses retainer plates at the brake backing plates. You won't be able to swap gears, center sections, and axles between Buick and Chev (at least not without mods).


This is a good resource. Jim posts on the V8 site regularly.
http://www.jdrace.com/
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Walt K
Eastern Pa

66 GS Astro Blue/blue 425 auto
66 GS Silver Mist/black 401 4 spd
66 GS Flame Red/black 401 5 spd
66 GS Saddle Mist/black 401 L76 auto
66 Special Flame Red/black 300 5 spd
65 GS vert Verde Green/ Saddle buckets 401 4 spd
79 Turbo Regal

Offline jmos4

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Re: 10 bolt posi
« Reply #2 on: December 18, 2023, 02:36:17 PM »
Hi,

Also depending upon year the Chevrolet axle came from could be a inch wider believe 67 up could be wrong also 67 up had different spring mounts compared to 64-66.

Regards,
Jim
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Jim

1965 Skylark post car (65 GS frame 401/4-speed, 2x4's)
1964 Skylark (future 430 stick)
1965 Special 4 door 300 4speed
1964 Special 2 door (future, GS 401 3 speed stick)

Offline Jim

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Re: 10 bolt posi
« Reply #3 on: December 18, 2023, 05:41:23 PM »
Hi ,didn't remember  when they got wider66 or 67  this is supposedly a 66 so it should drop in with a universal  joint change  .just a 300 mile trip to get it. I don't know the gear  ratio either I'll have to think some more. Jim
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66 lesabre,68 Electra, 42special streetrod, multiple, chevs, 69 chevelle ss,67 skylark conv, 65 skylark ht,68 el Camino  and more , 65 skylarkgs

Offline WkillGS

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Re: 10 bolt posi
« Reply #4 on: December 19, 2023, 08:00:26 AM »
I know the Chevelle 12 bolt was still the narrow version, unsure about the 10 bolt.
Buick went to the wider 10 bolt in '66.
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Walt K
Eastern Pa

66 GS Astro Blue/blue 425 auto
66 GS Silver Mist/black 401 4 spd
66 GS Flame Red/black 401 5 spd
66 GS Saddle Mist/black 401 L76 auto
66 Special Flame Red/black 300 5 spd
65 GS vert Verde Green/ Saddle buckets 401 4 spd
79 Turbo Regal

Offline 35chevcoupe

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Re: 10 bolt posi
« Reply #5 on: December 19, 2023, 06:46:54 PM »
I know when I got my 65 GS hd top it had a 66 chevelle 12 post in it and it fit perfect . I would think a 10 bolt 66 chevelle would be the same .
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John Evenson

1930 model A 4 dr sedan
35 chev coupe 2 dr Master Deluxe suicide dr,s
55 chev belair wagon 4dr
59 Buick Invicta 2 dr hd top
65 Buick GS 2 dr ht 3 spd
65 Buick GS Convertible 3 spd
1970 Cuda 440-6
71 Buick GS
84 chev 3/4 ton p/u 6.2 diesel
Yeah there's more
There all projects
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