Author Topic: Front end vibration  (Read 874 times)

Offline Blue Thunder

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Front end vibration
« on: March 27, 2015 - 11:19:54 PM »
I recently purchased a restored 1970 challenger RT. All bushings in the front end look new and connected and tight. I made a mistake of taking it to Goodyear for a front end allighnment and came back to  the worse allighment I had ever seen. The front tires were at least 3 inches pointing inward pigeon  toed and the tops of the tires were visually off too. I made them put it back on the machine so I felt at least safe just to get it home which was 5 to 6 miles away with tires chirping around corners. I Made a couple of phone calls to find someone that could still do the old school allighnment and found a guy that had been doing it 30 years. Picked up the car and it now drives very straight but on the way home I now have a pretty good vibration that developed in the left front end around 25 to 45 mph. Any feedback on what it might be ?




Offline Chryco Psycho

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Re: Front end vibration
« Reply #1 on: March 27, 2015 - 11:55:37 PM »
The big problem is the specs are designed for old bias ply tires so the front end needs to be set up far differently from the factory spec , you want to max the caster . 1/2* of camber in at the top  & approx 1/16" of toe in to steer properly .
 if there was no vibration before it sound to me like the alignment is still off , or you could have bad tires , if you have BFGarbage they are notorious for not being round .

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Offline Blue Thunder

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Re: Front end vibration
« Reply #2 on: March 28, 2015 - 08:29:19 AM »
The big problem is the specs are designed for old bias ply tires so the front end needs to be set up far differently from the factory spec , you want to max the caster . 1/2* of camber in at the top  & approx 1/16" of toe in to steer properly .
 if there was no vibration before it sound to me like the alignment is still off , or you could have bad tires , if you have BFGarbage they are notorious for not being round .

Thanks so much, the tires are new.... well were new until I had to drive home about 6-7 miles just to get the car away from Goodyear. Im just wondering if that few miles ruined the front tire.

Offline burdar

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Re: Front end vibration
« Reply #3 on: March 28, 2015 - 11:50:07 AM »
Have the front wheels rebalanced and look for any strange tire wear. If those few miles did wear the tread down creating a vibration, put them on the rear. One good burnout may correct it.  :lol:  :thumbsup: Also, check that the wheel bearings are adjusted properly.