Rear Tire Tilt
Thread Starter
Drifting
Joined: Apr 2002
Posts: 1,720
Likes: 19
From: Manhattan Beach Ca
Rear Tire Tilt
When looking from the rear of the car forward, my back tires lean toward the middle of the car at the top of the tire maybe an inch. Kind of like the old VW Beatles use too. This is with or without a full tank of gas. I'm about to try to install new strut rods (not adjustable) since the rubber bushings are about gone.
Tire wear looks normal and even, so just wondering if this is possibly normal for our Vettes or is it most likely from the bad strut rods? Opinions wanted. THX
Tire wear looks normal and even, so just wondering if this is possibly normal for our Vettes or is it most likely from the bad strut rods? Opinions wanted. THX
Race Director
Joined: Feb 1999
Posts: 19,659
Likes: 34
From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
IMO, you are doing the right thing replacing the strut rods. When the rubber bushings get worn, the tires tend to lean in at the top like you are suggesting. By replacing the strut rods and bushings you should have little to no tire lean after a good alignment. Good luck with the project and let us know how it turns out.
Drifting
Joined: Oct 2004
Posts: 1,259
Likes: 7
From: Ontario
That is one cause. However with that much camber I suspect you have more than one problem.
The other typical cause is worn yokes. Check the diff side yokes for end play or for signs that they are starting to wear into the sides of the diff case. To check it properly you need to remove the half shafts and measure with a dial gauge. However you can roughly check for excessive play with the car properly on jack stands and looking for side yoke movement.
The other typical cause is worn yokes. Check the diff side yokes for end play or for signs that they are starting to wear into the sides of the diff case. To check it properly you need to remove the half shafts and measure with a dial gauge. However you can roughly check for excessive play with the car properly on jack stands and looking for side yoke movement.
Thread Starter
Drifting
Joined: Apr 2002
Posts: 1,720
Likes: 19
From: Manhattan Beach Ca
Retro you are correct. I was looking into the yokes a few weeks ago on a different thread where someone said my tires were whobling. Turned out to be just the beauty rims but the yokes did seem to have some extra play. Around .125 but I'm not in the mood to yank the diff just yet.
Hopefully the new struts will help the tilt issue, if I can get them in.
Hopefully the new struts will help the tilt issue, if I can get them in.
Pro
Joined: Mar 2005
Posts: 683
Likes: 4
You don't need new strut rods. What you need is to replace the rubber bushings with the 2 piece urethane type. Unless the strut rods are bent this is the better fix. Make sure you have the rear aligned after you change the bushings.
Steve
Steve
Pro
Joined: Oct 2007
Posts: 549
Likes: 5
From: punta gorda florida
camber
I agree with steve on the strut rods
and doing camber is easy with a carpenter s square and level and good ruler
put level on the floor and get level then put square on top of level put against tire measure top and bottom at the rim you want the top 1/8 more than whats at bottom this will give you close to 1/2 degree negative camber and thats what they call for if adjust ment is needed turn eccentric bolt on strut support thats on diff
the actual measure ment is not important just so the top is 1/8 greater the other thing is that your square is perpendicular to wheel and car must be on ground when measuring and roll car back and forth after any adjustment is made pm me if need too
and doing camber is easy with a carpenter s square and level and good ruler
put level on the floor and get level then put square on top of level put against tire measure top and bottom at the rim you want the top 1/8 more than whats at bottom this will give you close to 1/2 degree negative camber and thats what they call for if adjust ment is needed turn eccentric bolt on strut support thats on diff
the actual measure ment is not important just so the top is 1/8 greater the other thing is that your square is perpendicular to wheel and car must be on ground when measuring and roll car back and forth after any adjustment is made pm me if need too
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