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Discussion Starter #1
I just bought 17 x 8 wheels 4.5 backspace for my stock suspension 69 camaro.

I want to get 245/40/17s which will lower the car a tiny bit. .8 inched to be exact


Any one know if this will work?


These are all the same for all 4 wheels

Thanks
 

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Since you are running the same all the way around I'd suggest the 235/45 17 it is .7" taller than the 245/40, is .5" narrower (section width) and the tread is only .3" less than the 245. You could even run the 255/45 or 255/40 in the rear and the 235/45 up front if you wanted the staggered width.

The problem with the 245/40 front and back is it's as wide as you can put in front and kinda small for the back which will make the car look lopsided IMO. The 235/45 will give you a little wiggle room in front (still may have some light scuffing) and that helps the tire not look too small for the rear.

If you have a good alignment, keep the tire pressure up and the suspension is in good shape you should be able to run staggered sizes and not worry about uneven wear. I've been running 255/45 and 235/45 for years and 25k+ miles without uneven wear issues...
 

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Discussion Starter #3
I should of said I bought 245/40/17s I'm running all the same around. Tomorrow I get tires mounted. Hopefully It works
 

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Discussion Starter #4
I bought the 245/40/17s I'm autocrossing and balance is very important to me. The 245s should fit though right?
 

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I think because of your 4.5" back spacing the 245/40 is going to be all over the fender lip. I have 17x8 4.75 backspacing wheels and even the 235/45 required replacing the top fender bolt with a button headed allen bolt and adding negative camber so it didn't rub. That extra 1/4" I have from the fender lip would really help you with the 245/40's. Maybe being slightly shorter will help too. At this point have one mounted and see how it fits...

Same size tires front and rear don't really guarantee a balanced handling package. You probably want just a little understeer or front end push so the back end isn't coming around on you in corners. My experience (limited as it is) is it's easier to correct for understeer with less time loss than correcting for oversteer or neutral steer where the whole car starts sliding or drifting.
 

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Discussion Starter #6
Okay.

The 245/40/17s in front worked no problem. Lots of room
I even lowered my car by cutting the coil and blocking the leaf spring. Looks great

Thanks for ur help!
 
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