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Question: '81 front clip dances over bumps

Joined
Jun 13, 2015
Messages
7
Location
Roseville,MI
Corvette
1981
32698210_10156918041231756_2628813876879163392_o.jpgHaving an interesting issue, and I thought maybe one of the well-versed C3 gurus on here could help.
I have an '81, stock black on red car. Lots of miles, and it was at deaths door when I got in in '06. Didn't run, 4 flat tires, leaking rear end, etc. I've reshot the paint, tightened up a lot under the car, rebuilt the rear, rebuilt front end, all new brakes parts, new interior, you get the idea. She looks good for her past.
Now here's the issue. When driving over anything more than an expansion crack, the front clip shakes and bounces around, visibly from the drivers seat. The hood moves a bit as well, doesn't pop the latch, but you can tell its' moved.
I replaced the front mount bushing , checked the frame extension bolts, checked the radiator support bolts, all tight. Birdcage is super sold, bonding to the car is solid. Rivets are all there in the front clip to attach it to the metal piece at the nose.
I'm at a loss. My brother in laws 81 never did it, my uncles 66 and 72 didn't do it, and my 74 had a very small amount of "fender dance" as I call it.
29066993_10156707960291756_3239294386529370112_n.jpg
Ideas? Is the clip just triangulate with the sides at the doors and the single bushing in the nose, or is there more that holds it in place? Seems like lower rad housing /support bolts go through frame/frame extension?

I currently have the 'glass front bumper cover off to repair some cracks and reshoot it. I'm replacing the oil pan gasket as thats leaking a good deal. I've worked on the headlamp doors and lights to get them right. Also replacing front bumper cover attaching strips on L and R side of clip.
 
Joined
Jun 13, 2015
Messages
7
Location
Roseville,MI
Corvette
1981
They're there...but not the best. All mounts on the body are solid, the cushions are compressed and old...originals.

Seems like a BIG job to replace all of them. Right now I'm working on the bad oil pan gasket, and replacing with a Fel-pro one-piece unit. Pretty slick setup.
Surprised there was no shims on starter though. Also thought it would have been a 4 bolt block but it's a two bolt...were those stock by '81?
It's apart now, have to clean it all up and install new gasket then start putting it all back together.

If fixing the clip dance means replacing all 8 body mounts, I might just have to live with it and find smoother Michigan roads:boogie
 

bill81vette

Moderator
Joined
Jan 17, 2004
Messages
4,270
Location
Troy,NY
Corvette
1981 dark blue metallic
The 81's were 2 bolt mains...My starter didn't have any shims either...as for the body,I would change the body mounts with new mounts and bolt,if it still moves you may have a larger problem.Let's hope not!!!

Sent from my XT1650 using Tapatalk
 

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