71 Body Sag? Mounts?
Thread Starter
Drifting
Joined: Apr 2004
Posts: 1,303
Likes: 36
From: Allen Park Mi
71 Body Sag? Mounts?
So - i picked up a 71 that really should be a parts car but i'm saving it.
WHen it sat on the tires, both doors rubbed as they closed.
Its now sitting on jackstands (as all the suspension is out) and voila! the doors close beautifully.
knowing these cars have aluminum bushing mounts, I didn't think "body sag" was an issue on this area.
The back half of the frame has some serious rust issues, but it doesn't appear (yet) that the body mount perches in front of the rear tire have collapsed or anything like that.
I did order straps and am planning to lift the body to inspect, clean, and change (and hopefully not have to replace the frame) but do the aluminum mounts "collapse" like the rubber stuff does?
Or shoul I plan on the frame being the issue?
Cheers
WHen it sat on the tires, both doors rubbed as they closed.
Its now sitting on jackstands (as all the suspension is out) and voila! the doors close beautifully.
knowing these cars have aluminum bushing mounts, I didn't think "body sag" was an issue on this area.
The back half of the frame has some serious rust issues, but it doesn't appear (yet) that the body mount perches in front of the rear tire have collapsed or anything like that.
I did order straps and am planning to lift the body to inspect, clean, and change (and hopefully not have to replace the frame) but do the aluminum mounts "collapse" like the rubber stuff does?
Or shoul I plan on the frame being the issue?
Cheers
Racer
Joined: Jan 2008
Posts: 291
Likes: 15
From: Virginia Beach VA
My 69 was converted to rubber mounts at some point long before I picked it up 12 years ago - maybe yours was as well? I’d also search forum for the DUB recommended way to put our cars up on stands... I’m of the camp that even good rust free frames are overly flexible and can be damaged by being on stands without the front properly supported. This has been a hotly debated talk at times - better to be safe than sorry I think.
Race Director
Joined: Apr 2009
Posts: 19,294
Likes: 2,754
From: Charlotte NC
Thanks for letting us know it is a coupe.
As I have stated in many threads that deal with WHERE to put jack stands. I only give my opinion on what I have seen and what I have had to repair when the frame is supported in the manner that GM states.
NEW frames are one thing....but these are aged frames are an entirely different issue. And never knowing the history of the Corvettes I work on...I have employed a method that takes ALL of those concerns out of the equation due to where I place the jack stands....which can change due to what I am doing or removing off the car.
DUB
As I have stated in many threads that deal with WHERE to put jack stands. I only give my opinion on what I have seen and what I have had to repair when the frame is supported in the manner that GM states.
NEW frames are one thing....but these are aged frames are an entirely different issue. And never knowing the history of the Corvettes I work on...I have employed a method that takes ALL of those concerns out of the equation due to where I place the jack stands....which can change due to what I am doing or removing off the car.
DUB
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