18x10 in rear???
Super Snuggles
Joined: Feb 2001
Posts: 10,091
Likes: 34
From: Redmond, WA
Originally Posted by rynberg
Hmm...lots of people running 10" wide wheels in the rear with stock trailing arms and springs. My 9.5" +45 offset have a LOT of clearance to the trailing arm and spring.
A 10" +45 offset (in 18" anyway) should fit fine with regards to the trailing arm and springs. I can see how a 10" in a 17" might be more problematic.
Here you can see a 17 x 9" +45mm on the back of my car to illustrate the position of the trailing arm in relation to the wheel.
Senior Member
Joined: Jan 2004
Posts: 341
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From: Colorado
Originally Posted by gfelber
Do not use 295s on a 10 inch rim. An 11 or 12 inch wide wheel is recommended. I've 295-30-18 Pirelli PZero Rosso Asymetricos on the rear of my FD. A decent tire, but seem to run larger width than what is provided in their specs, e.g., they are identical in width to a 305-30 Hoosier!
Gene
Gene
I knew it would be a little wide...
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Joined: Dec 2001
Posts: 14,716
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From: San Lorenzo, California
Originally Posted by jimlab
What do you consider a lot of clearance, and what springs do you have?
17" definitely. 7.0" maximum back spacing is just a safe rule of thumb to prevent problems. The larger the wheel diameter, the more clearance, usually, since both the spring and the trailing arm are angled away from instead of parallel to the wheel.
Here you can see a 17 x 9" +45mm on the back of my car to illustrate the position of the trailing arm in relation to the wheel.
17" definitely. 7.0" maximum back spacing is just a safe rule of thumb to prevent problems. The larger the wheel diameter, the more clearance, usually, since both the spring and the trailing arm are angled away from instead of parallel to the wheel.
Here you can see a 17 x 9" +45mm on the back of my car to illustrate the position of the trailing arm in relation to the wheel.
BTW, my 18x9.5 measure almost exactly 10.5" wide, matching up with the rule of thumb that the actual width is approximately 1" wider than the nominal width.
Last edited by rynberg; Mar 16, 2005 at 01:45 AM.
Originally Posted by rynberg
Your logic is flawed, a +42 offset is a WORSE fitment than a +45 offset!
How can that be flawed. We are talking about the rear aren't we? I also know that another guy I know was running a +41 on the rear with an 18x10 with no problems. He also had lowering springs.
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Joined: Dec 2001
Posts: 14,716
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From: San Lorenzo, California
Originally Posted by DonaldC
How can that be flawed. We are talking about the rear aren't we? I also know that another guy I know was running a +41 on the rear with an 18x10 with no problems. He also had lowering springs.
Lowering springs have absolutely zero to do with fender clearance in the rear. Yes, an 18x10 +41 wheel will fit, but maybe not with 285/30s. That's close enough to come down to individual tire brand. An 18x10 +38 wheel requires fender rolling. It only takes 1-2 mm to either clear or require rolling. There ain't no gray area.....
