Tire Size Suggestions: 20x8, C2500
- Thread starter fancyTBI
- Start date
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No lead time yet. Sent the order on 12/29 and I assume they were off for the new years. Hoping to hear today from them.
I found this on FB. They are 18” Detroit wheels with 4.5” backspacing. He is running a 255/45R18 up front. I found 255/45R20 from Nitto. They would be .4” wider than stock and 1.5” shorter than stock. I could probably swing a 255/50.
My wheels have 4.75” of back spacing.
@RichLo, not a bad idea if I had to do that. I could just modify my rotation pattern. I’d like for them to all be the same so I can rotate them normally. Trouble is, I have no idea what I’m doing when it comes to tire shopping for a modified truck. But I’m here to learn.
I found this on FB. They are 18” Detroit wheels with 4.5” backspacing. He is running a 255/45R18 up front. I found 255/45R20 from Nitto. They would be .4” wider than stock and 1.5” shorter than stock. I could probably swing a 255/50.
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My wheels have 4.75” of back spacing.
@RichLo, not a bad idea if I had to do that. I could just modify my rotation pattern. I’d like for them to all be the same so I can rotate them normally. Trouble is, I have no idea what I’m doing when it comes to tire shopping for a modified truck. But I’m here to learn.
Yeah, me too. Almost makes me wish I got 18s instead. Almost.
No go for this build. I still want to be able to rotate them with a conventional method. The look isn’t always something I like either. Function over form, even though the 20s might be stretching that function part a bit. I know you can still rotate them with a staggered setup.
I’ll do some more looking and come back when I’ve got some better ideas on sizes
FullBlowncustoms
I'm Awesome
I had a chart someplace, no matter what the offset is? it's a no go if the back spacing is not correct.
FullBlowncustoms
I'm Awesome
I can't find the chart I had for the drops, Only found this GRRRRR..
These numbers are for 2WD, stock track width, static dropped trucks
4wd trucks need to add an extra 5mm or so to the offset to be safe.
These numbers are the absolute minimum and will keep the wheel inside the fenders. Your wheel diameter, tire selection and drop will be the desiding factors in whether or not you have to roll/modify inner fenders/lips.
When you're looking to buy a wheel, you will need to know either the Offset or backspacing of the wheel. If you're looking at a wheel and it doesn't meet the specified numbers for it's width, it will not tuck and there's no chance with your stock track width. so this is to help with wheel selection.
The key number you need to assess is the front spacing. it needs to be 4.25" or less. If the front spacing on the wheel is higher than that it will not matter what the backspacing is because it will never tuck
the Categories are the width:
7"
Offset:-6mm or higher
Backspacing:3.75" or higher
8"
Offset:+6mm or higher
Backspacing:4.75" or higher
8.5"
Offset:+12mm or higher
Backspacing:5.25" or higher
9"
Offset:+19mm or higher
Backspacing:5.75" or higher
9.5"
Offset:+25mm or higher
Backspacing:6.25" or higher
10"
Offset:+30mm or higher
Backspacing:6.75" or higher
10.5"
Offset:+38mm or higher
Backspacing:7.25" or higher
11"
Offset:+45mm or higher
Backspacing:7.75" or higher
12"
Offset:+63.75mm or higher
Backspacing:8.75" or higher
These numbers are for 2WD, stock track width, static dropped trucks
4wd trucks need to add an extra 5mm or so to the offset to be safe.
These numbers are the absolute minimum and will keep the wheel inside the fenders. Your wheel diameter, tire selection and drop will be the desiding factors in whether or not you have to roll/modify inner fenders/lips.
When you're looking to buy a wheel, you will need to know either the Offset or backspacing of the wheel. If you're looking at a wheel and it doesn't meet the specified numbers for it's width, it will not tuck and there's no chance with your stock track width. so this is to help with wheel selection.
The key number you need to assess is the front spacing. it needs to be 4.25" or less. If the front spacing on the wheel is higher than that it will not matter what the backspacing is because it will never tuck
the Categories are the width:
7"
Offset:-6mm or higher
Backspacing:3.75" or higher
8"
Offset:+6mm or higher
Backspacing:4.75" or higher
8.5"
Offset:+12mm or higher
Backspacing:5.25" or higher
9"
Offset:+19mm or higher
Backspacing:5.75" or higher
9.5"
Offset:+25mm or higher
Backspacing:6.25" or higher
10"
Offset:+30mm or higher
Backspacing:6.75" or higher
10.5"
Offset:+38mm or higher
Backspacing:7.25" or higher
11"
Offset:+45mm or higher
Backspacing:7.75" or higher
12"
Offset:+63.75mm or higher
Backspacing:8.75" or higher
FullBlowncustoms
I'm Awesome
This is what use to be on mine, 20x9.5 They rubbed on any wavy road or bumps.. I changed to 18 x 8.5 wheels and rides nice....
https://www.customwheeloffset.com/b...el=C1500&drive=RWD&suspension=Lowered+4F+/+6R
https://www.customwheeloffset.com/b...el=C1500&drive=RWD&suspension=Lowered+4F+/+6R
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