Search found 3 matches

by 652plus2
Fri Aug 31, 2018 11:35 pm
Forum: 12 Bolt Differential Questions
Topic: 68 and up a body Chevy 12 width verses 65 Catalina width.
Replies: 1
Views: 528

68 and up a body Chevy 12 width verses 65 Catalina width.

I know a 12 bolt from a full size Chevy won't work in my 65 Catalina because of the mounting differences but an A body 12 bolt has the perches cast into the center section. How much narrower is a 68 and up A body 12 than my 65 Catalina rear? If I used later Pontiac lower control arms with the bushin...
by 652plus2
Mon Aug 27, 2018 2:24 pm
Forum: 12 Bolt Differential Questions
Topic: 12 bolt ring gear 10 bolt cover/ 12 bolt chevy
Replies: 1
Views: 248

12 bolt ring gear 10 bolt cover/ 12 bolt chevy

Can you explain the fundamental differences between a 12 bolt 1965 Pontiac ring and pinion and a Chevy 12 bolt ring and pinion? Can Chevy gears be machined to work in a Pontiac 12 bolt ring gear /10 bolt cover rear?
by 652plus2
Tue Aug 07, 2018 9:01 am
Forum: 10 Bolt Differential Questions
Topic: 1965 Pontiac 2+2 rear end gears
Replies: 1
Views: 523

1965 Pontiac 2+2 rear end gears

I have a question about available gear sets that would fit my 1965 Pontiac 2+2. I currently have 3:42 posi and wanted to step that at to maybe 3:90. Does anyone know if there are any gears available for my rear end?

Thanks
Tony

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