75 wheel/tire size help

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75 wheel/tire size help

Post by MallyMal S-3 on Thu Jul 09, 2009 12:11 pm

Hey does anyone know what the max tire size is for a 75 chevelle laguna style body?? ive got stock 15 x 8 wheels and am looking for larger wheels maybe 17/18 and fatter tires. i also dont wanna lose any handling performance nor would i like them to stick out past the fender. i appreciate the help

Chris
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Re: 75 wheel/tire size help

Post by 74Malibu383 on Thu Jul 09, 2009 1:39 pm

The wheel wells on these cars are absolutely huge! I've got 19x8's up front and 20x10's in the rear. Backspacing is 5" up front and 5.75" in the rear. I started with 245/35/19's & 305/35/20's, but after three burnouts on Power Tour, the rears are gone. So, I just ordered some 315/35/20's and I'm changing the fronts to 275/35/19's.
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Re: 75 wheel/tire size help

Post by The Dude on Thu Jul 09, 2009 1:42 pm

Welcome to the forum! I'm sure Limey will chime in soon. Seems like he changes wheels more than I change my oil. lol!

Seriously though, the general consensus is that if it fits in an older A-body it will fit in ours. I've had 15x10s in the back with 5" of backspace & I think that looks about as tight as I would want it. 5.5" of backspace might have worked better, but I'm not sure. I'm pretty sure all stock wheels are only 15x7 & smaller unless you got something from a later model car.

I haven't ever run larger diameter wheels, guessing you could squeeze a 10"-12" wide tire in the back. Probably 8"-10" in the front depending on backspacing & if it's lowered.

Looks like 74Malibu383 has your answer. He has about the biggest rolling stock around here.
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Re: 75 wheel/tire size help

Post by MallyMal S-3 on Thu Jul 09, 2009 1:53 pm

haha thanks guys. much appreciated. now i know i have 5 lug patern but i dont know the spacing??? will 5x114.3 / 5x4.5 workout??? sorry for the noobish questions Embarassed
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Re: 75 wheel/tire size help

Post by MallyMal S-3 on Thu Jul 09, 2009 1:54 pm

oh and sorry about the double post but 74Malibu383, i think you have the nicest 74 ive ever laid eyes on...no joke
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Re: 75 wheel/tire size help

Post by 74Malibu383 on Thu Jul 09, 2009 2:08 pm

Thanks Mally.
All of these 5 lugs use the standard GM 5x4.75 bolt pattern. Take a minute and go to this link.
https://www.rsracing.com/tech-wheel.html
It will give you everything you ever needed to know about wheel terminology.

As for my backspacing "5" up front and 5.75" in the rear", it's perfect. Without sounding like an A$$... it really is. The rear tires are perfectly positioned between the frame rail and fender. I've done NO body/frame modifications to fit these things.
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Re: 75 wheel/tire size help

Post by MallyMal S-3 on Thu Jul 09, 2009 2:15 pm

i love this forum and dont worry about sounding all bad. from the looks of it, they are perfect.
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Re: 75 wheel/tire size help

Post by The Dude on Thu Jul 09, 2009 2:21 pm

LOL I agree, you do have the nicest one I've seen too. The only thing that sucks is now I have to change my plans. You really hit my dream car idea on the nail.
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Re: 75 wheel/tire size help

Post by 74Malibu383 on Thu Jul 09, 2009 2:38 pm

No worries. I changed my plans mid project... I don't recommend that. It gets expensive that way.
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Re: 75 wheel/tire size help

Post by MallyMal S-3 on Thu Jul 16, 2009 11:37 pm

ended up getting cooper cobras on my stock '15 rally wheels

front: 235/60/15
rear: 275/60/15
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Re: 75 wheel/tire size help

Post by Limey SE on Fri Jul 17, 2009 12:44 pm

could have went with a 295/60

or a 295/50 this one is easier to find.......and love the vid of your ride sounds real good

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Re: 75 wheel/tire size help

Post by MallyMal S-3 on Fri Jul 17, 2009 1:03 pm

yea i will definately go bigger my next set of tires and hopefully they'll be wrapped around some nice cragars or amr's

thanks. looking forward to putting that new carb on
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Re: 75 wheel/tire size help

Post by The Dude on Fri Jul 17, 2009 1:43 pm

295/50r15 is too big for a 7" wheel. They require 8" wide wheel minimum. 275/60r15 is as big as you want to go with stock rallies.

I've never heard of 295/60r15, that's a 29" tall tire! Got any pics or info on these?
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Re: 75 wheel/tire size help

Post by MallyMal S-3 on Fri Jul 17, 2009 2:07 pm

not at the moment but they're cooper cobra radial g/t

i'll post pix when i get the chance
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Re: 75 wheel/tire size help

Post by The Dude on Fri Jul 17, 2009 2:10 pm

I was referring to Limey & those 295/60R15's. I'm curious to see them.

Would be cool to see a still shot of your ride though!
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Re: 75 wheel/tire size help

Post by 74Malibu383 on Fri Jul 17, 2009 2:21 pm

Hoosier makes some, but that's one goofy size. I'd never buy a set....

http://www.summitracing.com/parts/HOO-17125/
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Re: 75 wheel/tire size help

Post by MallyMal S-3 on Fri Jul 17, 2009 2:28 pm

lol why is it goofy?
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Re: 75 wheel/tire size help

Post by 74Malibu383 on Fri Jul 17, 2009 2:36 pm

If only one company offers a tire in a certain size, then it is goofy. Besides, it's 29" tall, and probably won't fit your wheel wells, due to the massive bulging of that gigantic sidewall.
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Re: 75 wheel/tire size help

Post by The Dude on Fri Jul 17, 2009 2:38 pm

Thanks for the sizing 74Malibu383. That's what I thought it was.

MallyMal, it's goofy because its a 29" tall tire. You might as well buy some truck tires & throw them on. If you want an idea of what I'm talking about, your tire is only 27" tall, so add 2" to yours & you'll see what I mean. Really fills the wheel well, lol.
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Re: 75 wheel/tire size help

Post by MallyMal S-3 on Fri Jul 17, 2009 2:44 pm

lol mmm i see. well i like em way better than my previous rubbeer tongue
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Re: 75 wheel/tire size help

Post by Limey SE on Fri Jul 17, 2009 5:59 pm

MallyMal S-3 wrote:lol mmm i see. well i like em way better than my previous rubbeer tongue
.................................................mmmmmmmm you said beer ^^

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Re: 75 wheel/tire size help

Post by JB2wheeler on Sat Jul 18, 2009 4:27 am

Heres an open invitation at my house, but you All will have to settle for Old Milwalkee Non Alcoholic beer. JB
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Re: 75 wheel/tire size help

Post by Limey SE on Sat Jul 18, 2009 12:36 pm

dam JB wished i was closer i would take you up on that sounds like a relaxing time to me .......

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Re: 75 wheel/tire size help

Post by Roadcaptain S3 on Sat Jul 18, 2009 8:21 pm

Mally- watched your vid- Car looks great and sounds great!
Scoots along pretty good too!
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Re: 75 wheel/tire size help

Post by MallyMal S-3 on Tue Jul 21, 2009 11:25 am

thanks captain and yuo would catch that limey Laughing
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Re: 75 wheel/tire size help

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