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Old 05-07-2009, 12:30 AM   #1
GMC70c20
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how wide of a tire will fit

How wide of a tire will fit on a stock width rear end, before it rubs the leaf springs in the stock position but still fit inside the box wall (I will probably cut the stock wheel wells out)?
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Old 05-07-2009, 07:44 AM   #2
djracer
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Re: how wide of a tire will fit

I don't know about a leaf truck but if you swap to trailing arms you can fit a huge tire. I had a 71 with no mods to the wheel wells and had 28x12.5 sportsman pro m/t's on it with a 10 inch wheel.
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My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4

So Far my best Times are:

Motor only:
6.44 1/8 @ 104.13
10.39 1/4 @ 125.83

Nitrous Times:
5.785 1/8 @ 118.65 with a 1.336 60ft
9.168 1/4 @ 142.58 with a 250 shot dead out of the hole!
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Old 05-07-2009, 10:12 PM   #3
drag_72
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Re: how wide of a tire will fit

i have the same question!!! what tire would fit with trailin arms and cut out wheel wells?
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Old 05-07-2009, 10:20 PM   #4
71Dragtruck
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Re: how wide of a tire will fit

29x14.5/15 Hoosier Quicktime Pros on a 15x12" rim with 7.5" backspace will fit trailing arms and cut fenderwells, stock rearend.

http://67-72chevytrucks.com/vboard/s...d.php?t=276897

here is a old pic of my truck with this combo.

Narrowed rear I now run a 31x16.5" Mickey ET Street with lot's of room.
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Last edited by 71Dragtruck; 05-07-2009 at 10:24 PM.
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Old 05-07-2009, 10:29 PM   #5
71Dragtruck
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Re: how wide of a tire will fit

Here's a pic of the new tires.
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Speed is just a matter of money, question is how fast can you afford to go?
8.95@148.97mph all motor haven't tried bottle yet
Sponsored by:
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Old 05-07-2009, 11:44 PM   #6
Nolowrider
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Re: how wide of a tire will fit

I have M/T 29x15R15 with 6.5 inch backspace, fits fine with about 1 inch from leaf spring.

The pic in my signature is old and without the new tires.

Last edited by Nolowrider; 05-07-2009 at 11:45 PM.
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Old 05-08-2009, 07:18 AM   #7
djracer
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Re: how wide of a tire will fit

Quote:
Originally Posted by 71Dragtruck View Post
Here's a pic of the new tires.

What kind of tubular control arms are those?
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Kevin

Special Thanks to All who have helped on the TRUCK!

My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4

So Far my best Times are:

Motor only:
6.44 1/8 @ 104.13
10.39 1/4 @ 125.83

Nitrous Times:
5.785 1/8 @ 118.65 with a 1.336 60ft
9.168 1/4 @ 142.58 with a 250 shot dead out of the hole!
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Old 05-08-2009, 09:44 AM   #8
71Dragtruck
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Re: how wide of a tire will fit

Quote:
Originally Posted by djracer View Post
What kind of tubular control arms are those?
I can't remember for sure, thinking they are CPP if my memory is right, I bought them from a board member that went with air bags instead.
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Speed is just a matter of money, question is how fast can you afford to go?
8.95@148.97mph all motor haven't tried bottle yet
Sponsored by:
Getz Oilfield Consulting
Hard Candy Customs
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Old 05-08-2009, 11:49 AM   #9
scatesracing
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Re: how wide of a tire will fit

A friend of mine has 29 18.5 MT under his ...... its so close but there under there
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