C2 Handling issue
Team Owner
Joined: Feb 2003
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From: Sitting in his Nowhere land Hanover Pa
2024 C2 of the Year Finalist - Unmodified
2015 C2 of Year Finalist
Race Director
Joined: Feb 2007
Posts: 15,468
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From: northern california
C2 of Year Finalist (track prepared) 2019
An answer with actual information would be: The tires he ordered are made by Coker and Coker tires have a poor reputation.
Le Mans Master
Joined: Dec 2004
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From: Pittsburgh
2024 C2 of the Year Finalist - Modified
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Jim,
Breaks my heart (and my wallet) that I had to remove my BF Goodrich Silvertown Red Lines that came with my purchase with under 3K miles.... that (2) were out of round. It was a hell of a ride at 70 MPH.....Just seems like a ton of issues with those tires......I just left them on my America's Finest Bolt on's and put a cover over them....
Steve, you have made your purchase....and you might be good to go! I love the look of the red lines.......Speedway is a good Company. I sell safety product to them..... And they should stand behind the products they sell in case you have issues.
Breaks my heart (and my wallet) that I had to remove my BF Goodrich Silvertown Red Lines that came with my purchase with under 3K miles.... that (2) were out of round. It was a hell of a ride at 70 MPH.....Just seems like a ton of issues with those tires......I just left them on my America's Finest Bolt on's and put a cover over them....
Steve, you have made your purchase....and you might be good to go! I love the look of the red lines.......Speedway is a good Company. I sell safety product to them..... And they should stand behind the products they sell in case you have issues.
Last edited by dcamick; Sep 29, 2021 at 09:24 PM.
Melting Slicks
Joined: Nov 2002
Posts: 2,884
Likes: 260
From: Jamison Pa
St. Jude Donor '11-'25
I recently ordered 8 BFG Silvertown Radials (4 red wall/4 gold wall) from JEGS. They sent me 2 tires that were over 1 1/2 year old. I cancelled the order and went with Diamondback Auburn. I’m waiting for them now.
Bob K.
Bob K.
Race Director
Joined: Feb 2007
Posts: 15,468
Likes: 8,946
From: northern california
C2 of Year Finalist (track prepared) 2019
Jim,
Breaks my heart (and my wallet) that I had to remove my BF Goodrich Silvertown Red Lines that came with my purchase with under 3K miles.... that (2) were out of round. It was a hell of a ride at 70 MPH.....Just seems like a ton of issues with those tires......I just left them on my America's Finest Bolt on's and put a cover over them....
Steve, you have made your purchase....and you might be good to go! I love the look of the red lines.......Speedway is a good Company. I sell safety product to them..... And they should stand behind the products they sell in case you have issues.
Breaks my heart (and my wallet) that I had to remove my BF Goodrich Silvertown Red Lines that came with my purchase with under 3K miles.... that (2) were out of round. It was a hell of a ride at 70 MPH.....Just seems like a ton of issues with those tires......I just left them on my America's Finest Bolt on's and put a cover over them....
Steve, you have made your purchase....and you might be good to go! I love the look of the red lines.......Speedway is a good Company. I sell safety product to them..... And they should stand behind the products they sell in case you have issues.
Instructor
Joined: Nov 2004
Posts: 110
Likes: 2
From: Portland Oregon
Granted a tire that's beginning to come apart will cause handling issues.
But the perceived big change in performance leads me to put my money on loss of a trailing arm shim(s).
Shortly after rebuilding my rear suspension I experienced a very similar occurrence.
One day the car handled great, the next time I drove it was very wonky.
The original style shims can't be removed without removing the shaft the the arm pivots on. So they don't fall out
But they're difficult to deal with and virtually all rebuilds and most alignments these days will use slide in shims that need a large cotter pin installed to hold them in.
If the installer overlooks this or forgets to reinstall the cotter pin, the new style slide shims will eventually fall out and disappear one by one.
Depending on how many have fallen out you might even be able to wiggle the tires and feel the play ( which there should be none).
But checking for side play at the shims of each T/A is warranted.
But the perceived big change in performance leads me to put my money on loss of a trailing arm shim(s).
Shortly after rebuilding my rear suspension I experienced a very similar occurrence.
One day the car handled great, the next time I drove it was very wonky.
The original style shims can't be removed without removing the shaft the the arm pivots on. So they don't fall out
But they're difficult to deal with and virtually all rebuilds and most alignments these days will use slide in shims that need a large cotter pin installed to hold them in.
If the installer overlooks this or forgets to reinstall the cotter pin, the new style slide shims will eventually fall out and disappear one by one.
Depending on how many have fallen out you might even be able to wiggle the tires and feel the play ( which there should be none).
But checking for side play at the shims of each T/A is warranted.
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Le Mans Master
Joined: Jan 2002
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New tires, Then get a 4 wheel alignment. Search out for someone knowledgeable about corvettes and that has done a few. The corner big box tire brakes and alignment shop is not the place. A competent chassis guy will look at the ball joints, steering, suspension, etc.
Race Director
Joined: Jan 2003
Posts: 17,693
Likes: 3,683
From: Central Arkansas
I just purchased a '66 coupe, 327/350 HP, 700R4. Prior to buying the car, we put it on a hoist and thoroughly inspected everything. All appeared normal and the car performed fine during the test drive with the exception of a hard pull to the left when braking (probably a caliper issue)
Anyone have any ideas?
Anyone have any ideas?
Re: mono-leaf rear spring. Never had one of these but everything I have read is that they are very sensitive to shock selection and can be very bouncy, porposing motion with standard shocks. There’s a recommended shock for use with this spring which I don’t recall at the moment, but someone here will know.
Thread Starter
Heel & Toe
Joined: Sep 2021
Posts: 22
Likes: 7
From: Lindale, TX
As far as the tires go, I've had Coker tires on two of my vehicles for some time now with no issues.
I have had two sets of wide whites on my '62 TBird without any problems and a set of redlines on my Nomad for over a year now. I just have not experienced the problems everyone is referencing here. Also, I thought Coker was the only source for redlines. Nice to know there is another choice now. I may try the Diamond Backs if I run into any problems.
I have had two sets of wide whites on my '62 TBird without any problems and a set of redlines on my Nomad for over a year now. I just have not experienced the problems everyone is referencing here. Also, I thought Coker was the only source for redlines. Nice to know there is another choice now. I may try the Diamond Backs if I run into any problems.
Team Owner
Joined: Feb 2003
Posts: 54,121
Likes: 9,430
From: Sitting in his Nowhere land Hanover Pa
2024 C2 of the Year Finalist - Unmodified
2015 C2 of Year Finalist
When your spending almost three times the price of normal 15” tires you don’t want to have zero chances of problems. The stories I read are enough to scare me DB tires have a great track record. I am pleased with mine
Race Director
Joined: Aug 2004
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From: NorCal
Safety Car
Joined: Sep 2011
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From: Madeira Beach, FL
2024 C8 of the Year Finalist - Unmodified
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With all the positive feedback on the Hankook series tires, I just found 5 at Walmart on line free shipping to my door at $79.00 a piece.
I ordered black walls in a 215/70/15 to go with my 65 knock off's. I like the simplicity of the look and I do plan on driving her so I wanted a dependable and reputable driving tire.
I agree that white walls belong on a Cadillac. The BF Goodrich's on there now are from 1988 and look great with less than 10,000 miles since installed.
I think for a 70's era Cragger mag wheel you can't go wrong with raised white lettering but not on my knock offs.
On my 68 big block that was wondering I filled the steering box with grease as it was dry and it was stable after that.
Marshal
I ordered black walls in a 215/70/15 to go with my 65 knock off's. I like the simplicity of the look and I do plan on driving her so I wanted a dependable and reputable driving tire.
I agree that white walls belong on a Cadillac. The BF Goodrich's on there now are from 1988 and look great with less than 10,000 miles since installed.
I think for a 70's era Cragger mag wheel you can't go wrong with raised white lettering but not on my knock offs.
On my 68 big block that was wondering I filled the steering box with grease as it was dry and it was stable after that.
Marshal
Thread Starter
Heel & Toe
Joined: Sep 2021
Posts: 22
Likes: 7
From: Lindale, TX
Burning Brakes
Joined: Mar 2021
Posts: 998
Likes: 388
From: Tyrone, GA
I don't know who will do your alignment but you need to ask them before the job to not proceed with the rear alignment if the bushings are bad. Some places will do the job even though it is useless if the bushings are bad. I just had mine done and the tech told me that he couldn't align the rear because I needed to get new bushings and he didn't charge me for it. I had a lot of steering issues when I bought mine but since I put in the electric power steering they have all disappeared. I can turn the wheel sitting still with no effort and the wandering at high speed I had is gone. I still need to get the steering box adjusted so that the car wants to return to straight ahead when pressure is released. I no longer have the sawing motion that I had before to keep the car straight. Just a thought if you don't get any relief it is something to keep in mind. I actually enjoy driving my car now, whereas before it was almost scary and constant work.
Le Mans Master
Joined: Feb 2008
Posts: 5,214
Likes: 447
From: NJ Hockey beer league
I agree, I dealt with a set of those tires recently (made by Coker) and they exhibited lateral run out on the balancing machine even though they were balanced to the wheel. Took them for a ride anyway since I was already on the hook and bad vibration above 50 mph (felt like driving on rough pavement). Luckily I bought them through Jegs, and they gave me a full refund and paid for return shipping too. Considered a manufacturing defect by the company.
Went with a set of Diamondback redlines and zero driving issues. I have purchased Coker wide whites previously that rode fine and balanced up with very little weights, but these redlines were a different story.
Went with a set of Diamondback redlines and zero driving issues. I have purchased Coker wide whites previously that rode fine and balanced up with very little weights, but these redlines were a different story.
Last edited by Pilot Dan; Sep 30, 2021 at 12:04 PM.
Race Director
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Duke
