1991 S10 Tires - Chevrolet Forum - Chevy Enthusiasts Forums

1991 S10 Tires

CTY's Avatar
Junior Member

Join Date: Mar 2009
Posts: 1

March 18th, 2009, 12:21 AM   #1  
1991 S10 Tires

My '91 S10/Tahoe Blazer 6cyl 4x4 has factory (litteraly - 38000 orig) tires. I think they are 205 75 R15.

Anyway, what is the biggest size I can put on before I get a rubbing prob?

Last edited by CTY; March 18th, 2009 at 12:48 AM.
EvansBlue's Avatar
CF Monarch

Join Date: Jul 2007
Posts: 6,151
Princeton, NC, USA

March 18th, 2009, 10:01 AM   #2  
255/70R15 probably the biggest you can get without rubbing. Honestly, I'd go back with 235/75R15

You can actually do the math an measure off how big the tire will be.

255(width-mm)/70(% of width)R15(rim size)
Width Profile Rim
You have a 205/75R15, Which is 205mm wide, 154 mm tall.
If you get a 235/75R15, The tire will be 2 cm wider and 2.2 cm taller.
A 255/70R15 will be 4cm wider than stock, 2.4 cm taller.

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