Like the title says! I'm looking at a used set of rims and tires. They are a great deal but I'm just not sure if they'll fit. I have an 87 GT stock height and these tires are on 18x8 wheels.

Is the bolt pattern 5 X 100mm?

The bolt patten is 5x100 and the offset is 35mm I'm just worried the tires are to tall and will rub. I've read on the forums some people using 245/40 r18 but I haven't seen any post's with people using 245/45 r18.

[This message has been edited by LeeR (edited 03-06-2014).]

Whether or not they'll fit depends on the offset. But the overall diameter is noticeably larger than stock. To give you an idea, a stock Fiero tire (215/60-R15) is about 25.2" diameter, whereas those 245/45-R18s will be about 26.7" diameter. Can you say "wagon wheels"?

Also keep in mind the bigger wheels will raise your car an extra 3/4" or so off the ground.

Edit to add: OK, I see the offset is 35mm (you posted while I was checking wheel sizes). The rims will be about 0.8" closer to the suspension. That's something to consider. You may end up needing spacers, but I'm not sure.

Here's a link to a really good tire size calculator, so you can play with the numbers yourself: http://www.rimsntires.com/specspro.jsp

[This message has been edited by Blacktree (edited 03-06-2014).]

quote Originally posted by Blacktree: Whether or not they'll fit depends on the offset. But the overall diameter is noticeably larger than stock. To give you an idea, a stock Fiero tire (215/60-R15) is about 25.2" diameter, whereas those 245/45-R18s will be about 26.7" diameter. Can you say "wagon wheels"?

Lol! Yup, I've seen cars that look like they have Wagon wheels, but I don't think these would be to bad. I just don't what to spend money on something that's not gonna fit!

[This message has been edited by LeeR (edited 03-06-2014).]

I have 245/45-17's on the rear of one of mine, but I don't know what the offset is. Not a problem on the rear. It may be on the front. I've got 245/40-17's on the front. Same offset all around. Being in Hawaii, are you close enough that the owner might let you do a trial fit? If they fit, pay and drive away with them.

They should fit.
Now, IMO, 17's fit better on a fiero. The price difference its huge between a good 17" tire and 18"

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[This message has been edited by DKcustoms (edited 03-06-2014).]

quote Originally posted by fierofool: I have 245/45-17's on the rear of one of mine, but I don't know what the offset is. Not a problem on the rear. It may be on the front. I've got 245/40-17's on the front. Same offset all around. Being in Hawaii, are you close enough that the owner might let you do a trial fit? If they fit, pay and drive away with them.

thanks for the input! I could try them out, but my Fiero is not running yet so I cant drive it over there. My wheels and tires are 18's so it's another 1" bigger in diameter than yours.

quote Originally posted by Justinbart: They should fit. Now, IMO, 17's fit better on a fiero. The price difference its huge between a good 17" tire and 18"

Yea, your probably right. For some reason I really like theses wheels and I'm buying them with tires for $300. I'll probably put some smaller tires on the front.

quote Originally posted by DKcustoms: Here ya go

Thanks, so with 8" wheels and a 35mm offset, that looks as about perfect of a fit width-wise as you can get! What do the blue lines represent?

[This message has been edited by LeeR (edited 03-06-2014).]

quote Originally posted by LeeR: Okay so I just got home with my new used wheels. $300. What do you guys think?

did they fit? I had to get coil overs in the rear so my 18x8 wheels and 245x18x45 tires fit.

My FWD 18s I had fit fine with 245s.

quote Originally posted by LeeR: Thanks, so with 8" wheels and a 35mm offset, that looks as about perfect of a fit width-wise as you can get! What do the blue lines represent?

Location of the stock wheels.

Bob

I would recommend plasti dip' the wheels black. That way if you decide you don't like it, or you want to sell them you can just rip the paint off them, no damage.

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quote Originally posted by nosrac: did they fit? I had to get coil overs in the rear so my 18x8 wheels and 245x18x45 tires fit.

Thanks for the input, I'm crossing my fingers!

quote Originally posted by darkhorizon: My FWD 18s I had fit fine with 245s.

Do you remember if they were 245/45's or 245/40's?

quote Originally posted by RCR: Location of the stock wheels. Bob

Thanks!!!

I have rear coil overs and 18 x 8 rims with 255 - 35 R18 in the rear... fits nice...

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quote Originally posted by Danyel: I have rear coil overs and 18 x 8 rims with 255 - 35 R18 in the rear... fits nice...

What size are you running up front?

My car is lowered 1" with lowering springs and running 225/40/18's on 18x8's with a 35 offset all around, I have no rubbing or bottoming out issues at all.

quote Originally posted by LeeR: What size are you running up front?

225 on the front

anybody know if a 235/40/18 will work on '88 in the front?
i'm planning on getting some tires ASAP and want to know if they
will run on the wheelwell during a turn.

thanks...

quote Originally posted by Custom2M4: I would recommend plasti dip' the wheels black. That way if you decide you don't like it, or you want to sell them you can just rip the paint off them, no damage.

I'm actually going to paint them. Although I've heard great stuff about plasti dip, these wheels need a little TLC and Painting them a nice glossy black seem like just the ticket!

quote Originally posted by JCircs: My car is lowered 1" with lowering springs and running 225/40/18's on 18x8's with a 35 offset all around, I have no rubbing or bottoming out issues at all.

Cool! I've actually changed my front tires to 245/40 r 18's so the height difference between yours and mine is only .6 inches. Sounds like it should be okay.

quote Originally posted by Danyel: 225 on the front

Thanks!

quote Originally posted by Tom Slick: anybody know if a 235/40/18 will work on '88 in the front? i'm planning on getting some tires ASAP and want to know if they will run on the wheelwell during a turn. thanks...

I don't know, but soon I'll have my 245/40/18's on and I'll let you know how they fit.

I do not think you will have a problem with a 35mm off set , I run 18x8.75 35mm with 265/35/28

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87GTseries 1 3800sc (7.597 @88.53 1.579 60ft)
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85GT Northstar/ 4t80e
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