When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
On my ‘68 I get a really bad vibration at about 35 mph and I cant go any faster. Im not sure what it is. Everything under the car looks tight and the wheels are properly inflated.
The only thing I can possibly notice is that these two shims (circled) are not lined up the same. Are they both supposed to be the same?
So I figured it out. At some point I must have loosened the rear ujoint at the driveshaft even though I dont remember doing so. So the drive shaft was rattling around and then it threw an end cap. I bought a new u-joint and replaced the cap so I think it is good now. Ill take it for a drive in a few minutes and see.
FWIW, the two "shims" are cam bolts to adjust the rear camber via the strut rods. Failing strut rod bushings can be a source of spooky handling (it will feel like your car has its own idea about where to steer, but the input is from the loose rear end). Heim-jointed strut rods are a great improvement if this is also a problem.
Major damage avoided. Humans make mistakes; glad yours didn't turn out bad.
The camber adjustments are rarely the same for both sides of the rear wheels. They are adjusted separately.
High speed vibration on ‘68
