07:50:24 - 09/22/2021
Okay, I'm going to be buying a set of tires in about 2 weeks to a month. Its a 2000 RC Sport running a 3.9L. Now in the front are Radials that were orginally came with the truck when I bought it. Tirerack says the OE on my truck is 215/75-15. Last year I bought 2 used tires from some shop. I told them to put the biggest tire they had that would fit in the rear. (I burned out the oe tires in the back, LOL) So I ended up with Radial Cooper Cobras GT (255/70/15) They are pretty nice, but the first and only place I went looking didnt carry Cobras. So I just wanted to know what is the biggest street tire I could fit in the first and rear. I dont plan to go offroading at all. I like the look of wide tires due to the muscle car look it give and handling. My rims are 15x6, I'm pretty sure since the R/T are 17x8 or 9. Tires are a big decision that most dismiss. What good is all that power if you have no traction. Thanx for any help/information.
| RE: Tires|
I have a couple of SLTs and I use Pirrelli Scorpian Zeros in 255-60X15 better if you can get them is 255-65 X 15 or a tire like the Dunlop in 255-70 X 15
I would use the 255-60for replacing the 215-75 X 15 and 255-65 or 255-70 for replacing 235-75 X 15
| RE: Tires|
If you have the 15" steel wheels, I think they are 15x6, the standard 15" aluminum wheels are 15x7, while the 15"ers with the handling and appearance package are 15x8"; the R/T wheels are 17x9.
For a 7 inch wide wheel, the widest recommended tire is a 235. An 8 inch wide can handle 255, a 9 inch can handle 275, etc. No matter what, make sure the overall diameter of the tire is within .5" of the stock size to avoid any problems with your speedo and odometer. If you have the 15x8" aluminum wheels (which I assume you do, if you are already running 255s), you should go with a 255/65/15; that is the oe size for the 15x8 wheels. In general, for every 20mm wider you go on the tread, the sidewall needs to be 5mm shorter. For example, a stock 215/75/15 would go to 235/70/15, then 255/65/15, then 275/60/15, etc.
This is a wheel & tire size calulator, you can input whatever sizes you like and see how they compare to the stock size for accuracy.
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