unique fitment question
- Thread starter jkell2a
- Start date
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- Joined
- May 26, 2025
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- 1,195
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- Location
- Girard, Ohio
- First Name
- David
- Truck Year
- 78
- Truck Model
- c10
- Engine Size
- 388
I ran a 305/50 20 Nitto drag radial in the rear of my 4/6 dropped C10 On a 20x10 with 5.75 backspace.
Tire Diameter:
32.05 in.
Section Width:
12.44 in.
When for example the driver side would articulate the axle up over something on just that side the inside of that tire would rub slightly on the wheel well about 3/4 of the way up on the inner side. Not enough to hear/notice but enough to leave a rub mark any taller or if the tread was more aggressive it could have been a problem.
Current tire is a 28x12 15 on a 15x10 with 5.5 backspace It comes nowhere near rubbing.
Tire Diameter:
28.00 in.
Section Width:
12.10 in.
If you stay around 31" tall or less, section width around 12.25" or less and keep your backspace around 5.5" with a 6-7" drop should fit fine without rubbing in the rear.
The front is a completely different story.
This is a fleet side a step box may be different.
Tire Diameter:
32.05 in.
Section Width:
12.44 in.
When for example the driver side would articulate the axle up over something on just that side the inside of that tire would rub slightly on the wheel well about 3/4 of the way up on the inner side. Not enough to hear/notice but enough to leave a rub mark any taller or if the tread was more aggressive it could have been a problem.
Current tire is a 28x12 15 on a 15x10 with 5.5 backspace It comes nowhere near rubbing.
Tire Diameter:
28.00 in.
Section Width:
12.10 in.
If you stay around 31" tall or less, section width around 12.25" or less and keep your backspace around 5.5" with a 6-7" drop should fit fine without rubbing in the rear.
The front is a completely different story.
This is a fleet side a step box may be different.
Last edited:
TotalyHucked
Full Access Member
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- Auburn, Georgia
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- Zach
- Truck Year
- 1985
- Truck Model
- Sierra 1500
- Engine Size
- 5.3
How low are we talking? Considering you can't clear a 33 on a stock height 2wd in the front without big block springs and it still rubs then...not gonna happen
