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Old 03-31-2016, 12:06 PM   #1
schroederchevelle
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'70 GMC C10 lowering for tire sizes

I'm new to this forum but I have a couple questions for you guys. I'm restoring a '70 GMC C10 fleetside longbox. I will be getting all the stuff to convert it to 5 bolt wheels from a '71 C10 a buddy parted out. I'm thinking I want to go with 15" wheels with 255/60R15 tires up front and 275/60R15 tires in the rear. Does anyone have a setup similar to this? I'm thinking I'll want maybe 2.5" drop spindles up front to bring the picup down to the tires a little better, and I might take a leaf out of the rear to do the same. If anyone has any input, it would be appreciated! Thanks.
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Old 03-31-2016, 01:32 PM   #2
DBK81
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Re: '70 GMC C10 lowering for tire sizes

Quote:
Originally Posted by schroederchevelle View Post
I'm new to this forum but I have a couple questions for you guys. I'm restoring a '70 GMC C10 fleetside longbox. I will be getting all the stuff to convert it to 5 bolt wheels from a '71 C10 a buddy parted out. I'm thinking I want to go with 15" wheels with 255/60R15 tires up front and 275/60R15 tires in the rear. Does anyone have a setup similar to this? I'm thinking I'll want maybe 2.5" drop spindles up front to bring the picup down to the tires a little better, and I might take a leaf out of the rear to do the same. If anyone has any input, it would be appreciated! Thanks.
On my '72 I have zero issues running 295/50/15 rear, and 265/60/15 front with a 3/5 static drop. You shouldn't have any issues running those sizes, but again allot is dependent upon your wheel's backspacing.
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Old 03-31-2016, 01:35 PM   #3
schroederchevelle
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Re: '70 GMC C10 lowering for tire sizes

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On my '72 I have zero issues running 295/50/15 rear, and 265/60/15 front with a 3/5 static drop. You shouldn't have any issues running those sizes, but again allot is dependent upon your wheel's backspacing.
What backspacing are you running on your wheels?
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Old 04-01-2016, 08:36 AM   #4
Mike C
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Re: '70 GMC C10 lowering for tire sizes

Link to similar discussion.

http://67-72chevytrucks.com/vboard/s...d.php?t=702709
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