Wheels wont throw your speedo off enought o matter. That is if you stay with the appropriate tire size. (ex. 245/45/17 for 17x8 rims, 275/40/17 for 17x9 rims and on and on.)digger said:Two more quick questions for you. I understand from reading further that the 4.10 will cause an incorrect reading on the speedometer. Since I am considering changing my tire and wheel size a little (oops, that'll be another question below), and I'll need a chip to correct the speedo, I suppose I should try to get the gears and the wheels/tires and the same time -- then correct the speedo all at once? If I just do the gears, does anyone know about how far, up or down, it will throw the speedo off so I can wing it for a few weeks until I can afford the wheels?
Dont buy a Chip until you get the T-Lok and Gears in. They will have to burn the chip to correct it.
If you go with 17x8 Rims then get 245/45/17 tires. They wont throw your speedo off by much at all if any. If your rims are 17x9 get 275/40/17 tires. If you get 18's then I am not sure about the tire sizes you need.digger said:Third subject... I have P205/65/R15 tires (standard) on the mustang now. I think the wheels are 15 x 7 -- but again, not completely sure - they're stock whatever they are. I don't need super-high performance tires, but I would like something a little wider, certainly better looking, and most importantly safe in the rain. (I know if they look good that adds 50HP right there, right LOL?) We have lots of rain in New Orleans. I was considering going with 17" wheels and I see they come in 17x8. Does anyone know of a reference sheet for what wheels fit what tires? Finally, when I go with a larger set of tires (maybe 60's?), do I have to worry about them rubbing against the wheel well? Instead of 17" do I go with 18" and to what effect?