Steering Wheel Shaking - Forums at Modded Mustangs
 
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post #1 of 5 Old April 10th, 2018, 07:32 PM Thread Starter
Waldo-Mustang
 
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Steering Wheel Shaking

Big issue, my steering wheel shakes like crazy at high speeds(55mph+) I have gotten my tires balanced{3times}, alignment{twice} and new camber bolts. I recently changed the rotors, pads and calipers from stock to powerstop. got new sumitomo tires (front) nitto(back). I also put a wheel trim around the rims. all the alignments and balancing were done after the mods. nobody can figure it out, help!
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post #2 of 5 Old April 11th, 2018, 09:13 AM
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Check the driveshaft and rear end. If the driveshaft is unbalanced it can cause a good bit of shake...if the rear end is starting to come apart, it can also cause nasty vibration.

My 03 used to have a NASTY shake between 30-35, but only there. I found out when swappping from the 7.5 stock rear end, to an 8.8, that my 7.5 diff was pretty much destroyed. No shakes after that swap.

Also I would check the trans and engine mounts for sanity.

What do you mean by wheel trim?

With regards to balancing, did they use crimp on weights, or stick ons? If its crimp on, they are not as accurate and don't get to all the weight increments, so that could still be an issue. Stick on would be the proper way. I had new rims/tires put on my 04 F150, and the dealer didn't think there was clearance for stick on weights, so they used crimp on, and it shook real bad at highway speeds. I went back and asked why if they balanced it, it shook. The tech that did the work said it balanced fine, etc. etc. but I involved the shop manager. He went for a ride along with me and agreed it was bad. We took off the crimp on weights, and put stickies on and re-balanced and that fixed the issues on that truck.

Since you have new items in most places, I would assume that the hubs, etc. are clean and free of debris, and that the wheels are mating flush to the hubs.

Sumitomos are not a great tire but should not be causing an issue, Nittos have semi-bad treadware but again shouldnt be the issue.

Also, how are your ball joints, and tie rods? Any issues there? I'm also not sure what you mean by powerstop calipers, I didn't know they made a replacement/upgrade caliper.

What year is your mustang again?

2003 Redfire & Black V6. Full suspension, 8.8 w/ 4.10s, tuned. 4.3L stroker + turbo capable of 550 hp soon

DD: 2015 SHO PP, 12.87 @107 1/4 mile (1.8 60') on 93 octane tune/CAI only. SAE corrected: 369.4/451.4 on E20, full Bolt On
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post #3 of 5 Old April 11th, 2018, 04:06 PM Thread Starter
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Its a 2005 Mustang GT Premium,
I bought a caliper kit from powerstop.
its called EVOLUTION SPORT. drilled and slotted rotors with upgraded calipers. and carbon pads.
The front seems fine, mechanic said everything looks tight and firm. they used the stick on inside the wheel for balancing. I didn't have any issues until I did all of these upgrades. but I've used the same set up of tires the past 2 years without any problems. except now that I put new brake system, wheel trim and camber bolts. the trim is basically a 3M tape that you can put on rims to prevent from road rash or curb rash.
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post #4 of 5 Old April 12th, 2018, 09:09 AM
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Quote:
Originally Posted by Waldo14 View Post
Its a 2005 Mustang GT Premium,
I bought a caliper kit from powerstop.
its called EVOLUTION SPORT. drilled and slotted rotors with upgraded calipers. and carbon pads.
The front seems fine, mechanic said everything looks tight and firm. they used the stick on inside the wheel for balancing. I didn't have any issues until I did all of these upgrades. but I've used the same set up of tires the past 2 years without any problems. except now that I put new brake system, wheel trim and camber bolts. the trim is basically a 3M tape that you can put on rims to prevent from road rash or curb rash.
Gotcha, so the calipers look like they're just stock calipers but painted. I don't see any difference unless the pistons inside are modified. if that is the case it may be worth trying your original calipers and seeing if the issue persists, in case one of the calipers is messed up. The wheel trim should be pretty light so I doubt it is causing any issue, but is there a chance that any of it is between the tire and the rim mounting surface? I haven't seen anyone run that before so IDK if that could be contributing to the issue in some way.

2003 Redfire & Black V6. Full suspension, 8.8 w/ 4.10s, tuned. 4.3L stroker + turbo capable of 550 hp soon

DD: 2015 SHO PP, 12.87 @107 1/4 mile (1.8 60') on 93 octane tune/CAI only. SAE corrected: 369.4/451.4 on E20, full Bolt On
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post #5 of 5 Old April 12th, 2018, 07:05 PM Thread Starter
Waldo-Mustang
 
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It covers the entire edge, so yeah it does wrap around just a tiny bit on the entire rim. the trim itself is pretty wide, so it glues on to the edge of the rim both inside(touching the tire) and outside (the inside of the rim)
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