The Fiero 5x100 is limiting my wheel choices since I'm wanting a wider rear wheel. I see alot of 5x114.3 wheels. How hard is it to change my bolt pattern?

wheel adapter or changing out your hubs with one of the kits sold by a fiero modifier... i think west coast has that bolt pattern. or make your own. theres a thread on it somewhere.

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First LX9 Fiero GT, 1987 | My Fiero Fuel Economy | MPG Display for OBD I
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quote Originally posted by 600racer: The Fiero 5x100 is limiting my wheel choices since I'm wanting a wider rear wheel. I see alot of 5x114.3 wheels. How hard is it to change my bolt pattern?

Haha... the bolt pattern is the least of your worries... Finding the proper offset is a PITA!

quote Originally posted by ALJR: Haha... the bolt pattern is the least of your worries... Finding the proper offset is a PITA!

Not on 84-87 Fieros... it is only the 88 that has the high front offset, and even then, it's not really hard after you know what you need. Just remember 25.4mm = 1 inch. So if you buy a wheel that is an inch wider and has the same offset, it will stick out an inch further... look for one with a higher offset to help balance the width change to the inside and outside.

Wheel selection is always going to be limited by something... there are some nice wheels that are only made with a 4 bolt pattern as well.

This thread is usually of some help in these matters...

[This message has been edited by carbon (edited 05-21-2010).]

There are LOTS of wheel choices for Fieros. Theres a whole list of prob 100 different OEM wheels that fit. That also means lots of custom wheels to fit those 100 different cars. Toyota, Sebring, PT Cruiser, Sunbird, Dodge Shadow/Omni, Cavalier (all those stock) just for starters. Ill never put adapters on a car...seen way too many failures.

quote Originally posted by rogergarrison: Ill never put adapters on a car...seen way too many failures.

Yeah, adapters are a bit of a hack job. But changing out the hubs to the larger ones (corvair on front, 4x4 front s10 hubs on rear), will get you the larger GM RWD pattern, and unless you just do the hub swap wrong, shouldn't present any failure issues. Or at least, they shouldn't be any more likely to fail than simply using stock Fiero hubs.

quote Originally posted by carbon:Just remember 25.4mm = 1 inch. So if you buy a wheel that is an inch wider and has the same offset, it will stick out an inch further.

A wheel 1 inch wider with the same offset will only stick out 1/2 inch further.

This thread lists all the OEM wheels that use the 5 X 100mm bolt pattern.
It is a little old (2000) but it is a nice list:
https://www.fiero.nl/forum/A...010924-2-004113.html

The diagram helps alot. I'm wanting 18x8 on the front and 18x9 on the rear. It's the 18x9 thats the problem. So much more selection with the 5x114.3 pattern. Is it reasonable to redrill hubs? Other solution? May could even go wider on the rear since I now have coilovers back there. A vette brake upgrade or similar in the future. A Nissan 300zx brake swap? Right bolt pattern.

5x100 most certainly isn't a restriction... you've got the Subaru WRX/Impreza sharing pattern, and with the 84-87s at least, the offsets are about spot on.

If you chose any Sebring wheels heres just a heads up I unfortunately found out too late. ONLY Sebring convertibles will fit Fiero....Sebring coupes and sedans have a different bolt pattern.

There are TONS of 5x100 VW Golf/Jetta, Audi wheels out there in different styles, deep dish, high/low offset, etc..

quote Originally posted by rogergarrison: ONLY Sebring convertibles will fit Fiero....Sebring coupes and sedans have a different bolt pattern.

Odd. Perhaps it's an American vs Canadian thing, but my father-in-law's Sebring hardtop sedan has 16 X 6.5 X 42mm offset wheels that have a 5 X 100 bolt circle. The offset is quite radical and would need spacers to get them out where they belong if you were planning on using them on anything but the front of an '88.

[This message has been edited by Bloozberry (edited 05-22-2010).]

I dont know why that is. I do know the convertible is built by Mitsubishi and the sedans are Chrysler. Lots of parts of convertible interchange with Eclipse. I found out because I bought a set of used OEM wheels for the same year (both 2004), trim package as my Sebring. Whoda thunk it, but they didnt fit, I think they were 4 1/2. The local wheel shop and Tire Rack both looked them up and told me they were different. These were both OEM 16" alloys.

[This message has been edited by rogergarrison (edited 05-22-2010).]

VW! VW! VW! Their 5x100's fit great and the offsets cruise in the Fiero range - 35 - 40ish. I have stock Jetta wheels as my winters and have the offset is great. I have an '88 too. If you want some 5x100's for cheap, go here:

http://forums.vwvortex.com/...03-5x100-Classifieds

I just got some bend and crack free 17" nice quality wheels with lightly used summers for $430. Shipped. Made a thread but nobody seemed to care.

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1988 Metallic Red Pontiac Fiero CJB T-Top Coupe, # 784 of 1252
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if you go to http://www.tirerack.com and punch in your vehicle data, you'll come up with a lot of aftermarket choices for wheels that fit our cars.

There are a bunch of 5x100 wheels if you want stock width. Look for something 18"X9" wide and you'll see what I mean. I've hit almost wheel/tire site. Alot more selection in 5x114.3.

Probably for two reasons:

The first is that anything with a 5 x 100mm bolt circle is going to be a relatively small car. Small cars don't usually have enough back-spacing to accommodate anything more than 6" to a max of 8" width wheels. A bulk wheel manufacturer isn't going to make wheels for a small number of cars that have been modified with wider fenders; and

The second is that 5 X 100 is the smallest bolt circle there is, and as a consequence, it's the weakest too. Fabricating a 9" or 10" wide wheel that's capable of having a 300+mm width tire mounted on it probably scares the heck out of design engineers from a liability standpoint. Of course you can probably have anything you like custom-made for a price, and being custom... probably at your risk too.

I know where the OP is coming from as far as frustration looking for wider wheels. There are a few 18x9 wheels out there in the 5x100 pattern.

Honestly, the easiest way I know of finding them are by google. Type this in: "18x9" and "5x100" (Quotes included). You will find a few options out there.

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'88 GT- 3800 Turbo 11.367@121.03mph
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Try a search at tirerack.com under 2007 Pontiac Vibe. Same 5x100 bolt pettern, similar offsets, but size ranges up to 20x9.

I think I'll look at upgrading brakes and let that help dictate what bolt pattern I run. Or look closer into if hubs can be redrilled or if parts from other cars can bolt on to change bolt pattern. Thanks guys.

Hello,
I am also interested in the change to a 5 x 114.3 wheel change. I have recently bought a V8 Archie notch wide body kit and having a hard time finding affordable wheels. I did find a set of 19" x 11" Avant Guarde M310 wheels that will fill the wheel well. The offset is 18mm, but they are 5 x 114.3. The problem I am having is the stock fiero hub doesn't have enough meat on it, unless you weld up the holes and re-drill. I like the S-10 idea that some one mentioned earlier in the thread. I went to Autozone (online) to look a them and they have a larger flange around the bolt circle. Will the Fiero 27mm x 33 spline axle go in these? I can have a machinist friend re-drill the hubs, I just don't want to have to weld on the hubs as it will change the metallurgy of the unit. Also will the S-10 hubs bolt in place of the stock rear Fiero hubs or will the spindles need to be modded? Thanks in advance, for the help guys, BTW, I would go to Autozone in person, but I am stuck in Baghdad for a few more months.

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85 Notchback 4.9 4T60E
88GT 3800SC 282 Getrag

quote Originally posted by 600racer: The Fiero 5x100 is limiting my wheel choices since I'm wanting a wider rear wheel. I see alot of 5x114.3 wheels. How hard is it to change my bolt pattern?

Exactly how much wider are you wanting to go? I have 18x9 HP Racing wheels on a stock 86 body, proportion wise that appears to be about the practical limit and is sufficient so far for the additional traction I wanted. I have 18x8s on the front and with the car lowered an inch the occasional unavoidable rough spot in the road is scary, not for the car but for the wheel as there is only so much cushion to absorb the impact with a low profile tire before rim damage results so keep that in mind.

BubbajoeXXX covers one method of hub swap in here: https://www.fiero.nl/forum/Forum3/HTML/000007.html

I switched to the larger bearing (and 5x115mm) hub for the rear. I can redrill this to most any size I want. My front was a little trickier, so I swapped to an 88. With the BubbajoeXXX method, I should be able to do the same on the front. A little bit extreme, but now I have options.

Bob

has any one tryed bigger brakes as stud size adapters
as with vett brakes you redrill to 5x100
can you weld studs to disks ? without warping ?
may need hub-center bit made to true both ? kind of a super concentric ring ?
could it work ??

I was looking around and found a few staggered sets on Ebay. You can't just search on Fiero, or 5x100. VW's I know share the same 5x100 and I think Audi's do as well.
I happened to fall upon some MOMO 18x8's up the road from me I got for $300 with tires. They are a little harder to find but can be found,.


When I get a little more money I want to swap out for Staggered wheels.

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86 Fiero 2M4 Silver, and 86 GT

I feel your pain I am getting Mustang wheels. I want 18x10 Chrome wheels on back and you can get them for less than $200.00 each. To get nice wheels like that in 5X100 the wheel cost more than the Fiero.

I found these today http://www.pyspeed.com/Avan...Set-p/avg-140-vw.htm .
Those would probably look really good on a Fiero.

Edit: Even the center bore is the right size, no rings needed.

[This message has been edited by mikejhjr (edited 05-10-2011).]

http://www.discounttiredire...&bp=5-100*9-100&rw=9
Scroll down to the bottom. The +38 may require a little fender flaring.
Matching fronts are here:
http://www.discounttiredire...fcb=&pager.offset=20
That should put you at the top of page 3, but also see the bottom of page 2

scion wheels fit good, but wheel adapters would be nice so you could put some corvette rims on a fiero. only watch out for wide rims and whatnot.
check out craigslist every once in a while, i see aftermarket 5x100 wheels all the time and there can be some pretty nice ones at that.

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1987 FIERO GT
5 SPEED