Help Deciding on correct springs for tire combo

evostang

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I have a set of 20's with 255/35/20 and 295/40/20 in the rear..

yes there is barely any wheel opening in the rear.

what springs would you guys recommend? i was thinking the sport lines as it lowers 2" in the rear and i can tuck the back (i hope)
 

BadHabit2Break

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I have the 255/35/20 all around and have plenty of room.

I decided to go with the FRPP K springs. Should be just right.

I can not go to low, or my BBR LNR front bumper is gonna scrape everywhere.
 

jpe

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I also have k springs and love them. The rear could be a tad lower but o well. My alignment was perfect when i just spun the strut mount around 180 degrees. All they needed to do was toe adjustments.
 

Pop'stang

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I have 285/40 R18 in the back with Steeda Sports springs and never had a rub. I doubt that I could go wider because it's flush as it is.
 

08BlackGT

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yea.. my concern is my rears.. slightly bigger than yours..

wonder if a 2" drop will be ok?

Slightly bigger? Try 3.3" bigger in diameter! That is a huge differnce... 27" front and 29.3" rear.

Are you sure that the rears aren't 295/30/20s?
 

Makdaddy

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I just got a set of 295/40/20
I will be lowering on Spotlines with a set of FFR on the side in case the sportlines are to low with these tires

I hope to have it done in a a few weeks
Ill let you know how it works out
 

OhhFiveGt

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I'm lowered 2 inches in the rear and have a set of 26inch and 28inch diameter tires for the rear I have plenty of room with both tires they don't rub and I still have small wheel gap
 

Makdaddy

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I'm lowered 2 inches in the rear and have a set of 26inch and 28inch diameter tires for the rear I have plenty of room with both tires they don't rub and I still have small wheel gap

Thats good to hear I just got the wheels and tires today
I am hoping that the 29" tall will fit with the sportlines, but honestly
it looks like I may have issues. But I hope to find out this weekend.

Whats the measurement from the ground to the rear fender lip?
My car stock is 29 inches
 

Norm Peterson

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I have a set of 20's with 255/35/20 and 295/40/20 in the rear..

yes there is barely any wheel opening in the rear.
I'm trying to help keep your "(I hope)" from becoming famous last words . . .

What you need to do is get under there, take some clearance measurements, and figure out what happens to them as the wheels move up into the wheel wells as the car is lowered. Don't forget that the suspension will still move some and that the axle will move laterally a little bit, too. "Barely any wheel opening in the rear" isn't nearly enough information for anybody else to give you the answer that you want to hear.

Never mind that the way the car gets driven starts getting more important as you crowd the tires closer to the sheetmetal, inner fenders, etc. IOW, what "looks OK" from the side and might (just barely) work for a really mild driver doesn't have a chance in hell of being satisfactory for those who run their cars hard. And unless you're smacking into some pretty stiff bump stops, there will probably be more suspension movement than you think.

Keep in mind that different 295/40-20 tires will actually measure up a little different, and that the ones you have now could go out of production. It might suck to fit springs that don't cause problems with your current tires, but which would cause the next set of 295/40's to rub because they were just a little bit bigger or wider/wider at the tread.


Norm
 
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Makdaddy

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