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Old 02-21-2010, 10:16 PM   #1
cheap67
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Trouble with tires rubbing

I was hoping for some help from you guys. I installed 2 1/2" drop spindles and 3" drop springs on my 67' gmc. I did this about 2 months ago, now I know this is going to sound stupid but I didn't have trouble with the front tires rubbing until the days when it gets above 50 degrees. I can drive to work in the morning at 30 degrees and have no problems but in the evening on the drive home if its over 50 degrees any little dip in the road the tires rub the the inner fenders. How I know there is not a lot of room under there because I am running 255/35/20 and I don't want to change rims and tires. But with spring around the corner I have to do something. So has anyone had an issue like this and or any suggestions. Thanks in advanced for any help.
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Old 02-21-2010, 10:30 PM   #2
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Re: Trouble with tires rubbing

Are you running stock rims?
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Old 02-21-2010, 10:38 PM   #3
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Re: Trouble with tires rubbing

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Originally Posted by cheap67 View Post
I was hoping for some help from you guys. I installed 2 1/2" drop spindles and 3" drop springs on my 67' gmc. I did this about 2 months ago, now I know this is going to sound stupid but I didn't have trouble with the front tires rubbing until the days when it gets above 50 degrees. I can drive to work in the morning at 30 degrees and have no problems but in the evening on the drive home if its over 50 degrees any little dip in the road the tires rub the the inner fenders. How I know there is not a lot of room under there because I am running 255/35/20 and I don't want to change rims and tires. But with spring around the corner I have to do something. So has anyone had an issue like this and or any suggestions. Thanks in advanced for any help.
Do you eat a big lunch at work? (jk) That is odd. Could they be rubbing on a shock? Loose or worn ball joint? Don't know what to make of the temp difference.
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Old 02-22-2010, 12:10 PM   #4
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Re: Trouble with tires rubbing

My first guesses would be, one, the cold is making the fluid in the shock thicker, in result making the shocks stiffer and not allowing the suspension to move as much. When it warms up, the fluid becomes thiner and hence, more movement.

Second (and unlikely) might be the tires are shrinking slightly due to the cold. As it warms up, they expand a little. Combine this with my above idea and that could make the difference.
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Old 02-22-2010, 01:50 PM   #5
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Re: Trouble with tires rubbing

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Originally Posted by chevy_mike View Post
my first guesses would be, one, the cold is making the fluid in the shock thicker, in result making the shocks stiffer and not allowing the suspension to move as much. When it warms up, the fluid becomes thiner and hence, more movement.

Second (and unlikely) might be the tires are shrinking slightly due to the cold. As it warms up, they expand a little. Combine this with my above idea and that could make the difference.
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Old 02-22-2010, 02:11 PM   #6
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Re: Trouble with tires rubbing

or the metal of the springs are less "stiff" due to thermal contraction. in short, the spring will "spring" more in warmer temps

heat expands, cold contracts.....
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Old 02-22-2010, 03:26 PM   #7
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Re: Trouble with tires rubbing

Lots of good ideas here but he's running 20 in wheels. With 255/35/20's that gives a total diameter of 27 inches. Way too tall for that Jimmy front fenderwell with 2.5 in drop spindles. When the tires get hot and expand, they're probably rubbing on the inside of the top of the well. Easy way to find out is pull a wheel and find where it's rubbing. If it's the wheel well, most guys cut the fenderwells to clear but that really sux when you drive on a wet road. That well is rolled down on the inside to make it easier to work on the engine. Lots of ways to make more room and still keep a well liner.
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Old 02-22-2010, 10:21 PM   #8
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Re: Trouble with tires rubbing

I would try KYB Gas-adjust shocks if yours are worn out.
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Old 02-24-2010, 10:44 PM   #9
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Re: Trouble with tires rubbing

Thanks guys, all the suggestion will help. I feel sure it is in the spring or shock just not sure which one, I do know that the ride is alot softer when it warms up. I just wanted to know if anyone else hadthis issue. I don't want to cut inner fender well because I love the way these trucks look.
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