75 Corvette frame drawing with dimensions
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75 Corvette frame drawing with dimensions
What I need is a drawing showing measurements for two front attachments to the front crossmember for the lower
A arms on a 1975 Corvette your help will be appreciated Thanks Dennis
A arms on a 1975 Corvette your help will be appreciated Thanks Dennis
Thread Starter
Advanced
Joined: Apr 2014
Posts: 56
Likes: 1
I really appreciate you sending this draw of the frame dimensions, but what I was looking for was measurement for the attachments on the front crossmember for the lower control arms, but maybe I can scale the drawing to get it. I thank you for your help Dennis
Old Pro Solo Guy
Joined: Dec 2017
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From: Marlton NJ
I think I have what you need. I found there were two frame measurements that affect alignment, that I was interested in, that were not on any frame blueprint drawing.
This thread is about a upper a-arms measurement that is not on any blue-print drawing
https://www.corvetteforum.com/forums...he-a-arms.html
The generally accepted measurement there is 26-3/8"
And this thread is about the lower a-arm measurement that is also not on any blueprint drawing.
https://www.corvetteforum.com/forums...e-crazy-3.html
It's a long thread, but in post #60 over a dozen members contributed front lower a-arm bracket measurements. The average distance is about 408mm apart, ctr to ctr, and equal distance fr & rr of bracket, but they do vary. 16+1/16" Many vary by 1/16", some way more.
Quality control was not great back then, and they are old & abused.
PB4 had an interesting solution on his car, he machined an angled a-arm shaft.
On my car, I cut the offending bracket off and had a new one welded on, to reposition the rear end of it 3/8"
This thread is about a upper a-arms measurement that is not on any blue-print drawing
https://www.corvetteforum.com/forums...he-a-arms.html
The generally accepted measurement there is 26-3/8"
And this thread is about the lower a-arm measurement that is also not on any blueprint drawing.
https://www.corvetteforum.com/forums...e-crazy-3.html
It's a long thread, but in post #60 over a dozen members contributed front lower a-arm bracket measurements. The average distance is about 408mm apart, ctr to ctr, and equal distance fr & rr of bracket, but they do vary. 16+1/16" Many vary by 1/16", some way more.
Quality control was not great back then, and they are old & abused.
PB4 had an interesting solution on his car, he machined an angled a-arm shaft.
On my car, I cut the offending bracket off and had a new one welded on, to reposition the rear end of it 3/8"
Last edited by leigh1322; Sep 17, 2022 at 09:35 AM.
