I'm brand new here and just bought a 1981 Corvette. I had all 4 tires replaced, lower ball joints replaced and a 4 wheel alignment. All of the rest of the suspension seems to check out just fine. The problem I am having is difficult to explain... The steering seems super-sensitive to the left or right. Sorta feels like the car is almost balancing on a single wheel, centered, in the front of the vehicle and when you even think about turning left or right, it GOES- at highway speeds I'm pretty sure it would roll over if the driver wasn't gripping the wheel with white knuckles.
Could be several things... top two in my book would be alignment (specifically camber if it doesn't drift when driving a straight line), and second would be in the rear end, trailing arms. If the trailing arms have loose bushings, or your rear suspension has too much play somewhere else, you will get over-steer.
Sounds like it ready for a race track to me.P/S control valve, mabey?and the im guessing it did not do this before the alignment. make sure it was a reputable mechanic and not some dirt ball who doesnt know the firs thing about corvettes, I only have my car aligned at GM and by the attending corvette mechanic there. so you may need to go to GM to get the bad alignment "fixed". and please do remember that people doalign cars wrong every day.
1984 corvette ls1, 650 holley(high rise), custom intake, cam, full exhaust, 373's, bug catcher, 425rwhp/ 498ft/lbs is finally achieved Thank God!!!(new intake need to re-dyno
Hi again, my car LF toe RF toe
Your car .26 .28
Rear camber-my car -0.4 -0.1
Your car 0.1 0.1
See if those specs will give you a better ride. And check the things everyone mentioned, and the lash on the steering box, have someone move the steering wheel while you look at the pittman arm, make sure it does not go up and down before it goes left or right. Hope this helps, PG.
my Vettes birthday, May 1, 1974
"........remember, that people doalign cars wrong every day. "
......and on some days, they'll do 2 or 3, ......maybe even more.
DeeVeeEightmentioned "Tires" ? Yup, your right. Tires play a big part.
I have 60's on the front, 50's on the rear, and don't have any probs. I wanna go with 50's on all 4 corners. I'll be lookin' for a good vette shop for alignment, no Big "O" for me.
( or,.......how about I go for a full 14" on all 4's? Hoosiers,
Mickey Thompson's? HMMmmmm.........)
bill, hit it right on the nose. The whole suspention system ( tires included ) comes into play.
That's what I love about Vettes, you can really make them babies handle, and.... perform. [sm=bounceybounce.gif]
1980 L-82 Fastback (forward too)
Mono composite front and rear.
Full adjust ride height and
response on all four Coopers.
400+ hp, 454, 3 sp stick w/OD,
3.07 in the rear
'07 H. D. Sportster, XL 883 EFI
'06 Silverado, Wife's
If it handled fine before the tire change, ball joint replacement and alignment then it would be logical to assume that it has to be one of those three things. It's possible to get a bad tire but not very likely. Same with the ball joint. That leaves the alignment and as others here have said, people do align cars wrong every day. I got a bad alignment on my Camry this summer at the tire store. It drove fine at slow speeds but pulled left like mad above 50mph.
The exception would be if the mechanic damaged something else during the ball joint replacement or alignment procedure. Sometimes during alignment, and especially on older cars, they have to bang some stuff to get it loose enough to move. 25 year old rubber bushings can get damaged easily under those conditions.
None of that really helps does it? I guess my only real advice is a repeat of what others have said here: find a competent vette mechanic and have him look it over.
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