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Brake upgrades and wheel fitment

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Brake upgrades and wheel fitment

Old 04-21-2007, 02:20 AM
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Re: Brake upgrades and wheel fitment

Does anybody knows about the 15x7 Turbo-Cast wheels ? I'm on the way to buy a set, and wanna upgrade my 4-disc 83 T/A with a stock appearance...

Just like a sleeper. : )
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Old 06-06-2007, 05:34 PM
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Re: Brake upgrades and wheel fitment

It would seem that the "Ghetto-gold" 15" cross lace wheel can only accomodate the LS-1 in the front. What options, if any, are there to improve or equalize the rear braking capabilities so they'll better match up with the front LS-1 upgrade?
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Old 08-23-2007, 08:10 AM
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Re: Brake upgrades and wheel fitment

so will LT1 Front brakes fit on a third gen, i have 19" rims so space is not a problem.
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Old 10-05-2007, 01:50 AM
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Re: Brake upgrades and wheel fitment

A little late but no they won't, the LT1s are a different design than our stock front brakes.

LS1s can fit under 15" rear wheels with some grinding, I don't recommend it.

C5s will not clear TT2 wheels but a LS1 setup using a C5/C6 base caliper will:

https://www.thirdgen.org/forums/brak...on-c5-tt2.html

Ed
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Old 12-21-2007, 08:18 PM
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Re: Brake upgrades and wheel fitment

I have 18" Z06 rims 9.5 front 10.5 rear and id like to put C5 Z06 brakes in the front and I was wondering if they would fit. Now the dilemma I have a 91 Z-28 with the drums in the back and whats the best back rear discs I can use.
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Old 01-27-2008, 02:57 PM
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Re: Brake upgrades and wheel fitment

does anyone know if they will fit 1992 RS 16" wheels??
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Old 02-08-2008, 05:51 PM
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Re: Brake upgrades and wheel fitment

Originally Posted by redsunshine_91 View Post
I have 18" Z06 rims 9.5 front 10.5 rear and id like to put C5 Z06 brakes in the front and I was wondering if they would fit. Now the dilemma I have a 91 Z-28 with the drums in the back and whats the best back rear discs I can use.
Considering the factory Z06 front wheel was 17", and you have the same ones in 18", I would say so.
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Old 02-12-2008, 05:20 PM
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Re: Brake upgrades and wheel fitment

This just in folks, I put my 15" centerline convo's on my LS1 rear. With ZERO modifications they fit. Its sorta snug, it only gives me 1/4" or so of clearance, but hey, most supercars are under 5mm, so yeah....
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Old 02-25-2008, 04:21 PM
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Re: Brake upgrades and wheel fitment

I have a question concerning the fitment of 1991-92 Ronal R15 Firehawk 17 inch wheels. Will they fit with the C5 13" brakes?
Thanks for any help.

Regards
Marcin
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Old 03-26-2008, 09:55 AM
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Re: Brake upgrades and wheel fitment

What brake setups do fit stock 15" rims? I'm looking at upgraded calipers up front and from this thread it doesn't look like I have many options.
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Old 03-26-2008, 06:39 PM
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Re: Brake upgrades and wheel fitment

Pretty much 1LEs and 12" C4s, your wheels are the limiting factor.

Ed
----------
Originally Posted by Faceman View Post
I have a question concerning the fitment of 1991-92 Ronal R15 Firehawk 17 inch wheels. Will they fit with the C5 13" brakes?
Thanks for any help.

Regards
Marcin

Nope, even LS1s are pushing it in those wheels. They have a good amount of taper from rear to front and this is the issue.

Ed
----------
Originally Posted by ssj2link View Post
does anyone know if they (C5 brakes) will fit 1992 RS 16" wheels??

No, C5s will not clear stock 16" wheels. You can fit full 13" C4 HDs in them as well as a LS1 kit using a C5 caliper, no problem.

Ed

Last edited by ebmiller88; 03-26-2008 at 06:42 PM. Reason: Automerged Doublepost
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Old 03-26-2008, 07:06 PM
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Re: Brake upgrades and wheel fitment

Ed, will an LS1 kit fit a smaller rim (internally) than a C4HD set up? I have a set of light weight stamped aluminum rims that are just a hair too small for a C4HD kit.
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Old 09-06-2008, 07:20 AM
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Re: Brake upgrades and wheel fitment

Will the C4 HD set-up fit under stock 16 inch formula wheels or will only the standard C4 brakes work?
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Old 09-06-2008, 09:10 AM
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Re: Brake upgrades and wheel fitment

Didn't see it in this thread anywhere.

14" C6 Z06 rotors/6 pot calipers will fit behind a base 18" c6 wheel with the proper ~2-2.5" spacer required to get those wheels to fit on our cars anyways.
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Old 09-23-2008, 01:47 PM
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Re: Brake upgrades and wheel fitment

I upgraded to the 1LE front brakes several years ago and they have been outstanding at the track all of these years. Of course the aggressive Hawk pads I run in them is what does all the work.

And with the 'R' compound tires wrapped around the 16" GTA crosslaced wheels, classic.



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Old 09-28-2008, 11:35 AM
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Re: Brake upgrades and wheel fitment

Will LS1 rear brakes clear the 16" crosslaced wheels without issues?
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Old 02-03-2009, 07:02 AM
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Re: Brake upgrades and wheel fitment

Will Baer 13" Track front brakes fit with Progressive 16" X8"?
9.5" X17 TorqThrust II?
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Old 03-23-2009, 11:58 AM
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Re: Brake upgrades and wheel fitment

Originally Posted by ebmiller88 View Post
C5 brakes, using all C5 parts, will NOT fit inside stock 16" wheels (Iroc and Z28). The 13" C4 HDs will fit those stock 16" wheels. Now, a LS1 rotor setup and a C5 caliper will fit 16" wheels, there's a thread on it in the brake forum.
Ed
Just an FYI they WILL FIT, but REQUIRE MODIFICATION to the caliper that some may be unwilling to do. I am wrapping up my install under 92 Z/28 rims using all C5 parts. The caliper strengthening/cooling fins on the top need to be ground flat w/ the rest of the caliper body to give the required 0.100 min clearance (per Baer's 13" "Track" kit). Another member, SoCal, has also done this swap.
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Old 04-24-2009, 10:29 PM
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Re: Brake upgrades and wheel fitment

Didn't see it addressed in this thread. Will LS1 brakes front and back clear 17" iroc reps?
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Old 05-13-2009, 09:36 PM
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Re: Brake upgrades and wheel fitment

I've got Wilwood Dynalite II rear 12.19" on my Moser 9" rear. My stock 5-spoke Z28 aluminum mag wheels fit with NO problems! I am so happy. Just found out yesterday. These are the stock 82-84 15X7 wheels.
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Old 05-13-2009, 09:47 PM
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Re: Brake upgrades and wheel fitment

So pretty much anything will fit behind a 17" rim i take it lol.
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Old 09-12-2009, 01:33 AM
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Re: Brake upgrades and wheel fitment

will c5 brakes fit behind 18 iroc replicas
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Old 10-15-2009, 06:51 AM
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Re: Brake upgrades and wheel fitment

does anybody know if the baer sport brakes ( 12")
will fit the stock camaro 15 inch 5 spoke wheels ?

would like to upgrade the brakes on my camaro without throwing away my winter rims.
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Old 10-15-2009, 09:57 AM
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Re: Brake upgrades and wheel fitment

well, just got an answer from hawks third gen that the 12 inch baer sport kit fits behind a 15 inch 5 spoke camaro wheel.
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Old 11-06-2009, 11:56 PM
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Re: Brake upgrades and wheel fitment

Just put LS1 rear brakes on a 87 GTA.

Calipers will NOT clear 16" gold crosslace rims with out some grinding. And its a TIGHT fit, there is maybe 2-3mm clearance from the body of the caliper to the inside of the rim.

I got them on, and the stock rims on the car now, I can take some pics if anyone wants to see.
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Old 12-11-2009, 12:54 AM
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Re: Brake upgrades and wheel fitment

OK this may sound dumb but I'm a little confused on the wording for the Firebird rims, crosslace, snowflake etc for these years. Here's a pic of the wheels I will be running:



I'm going to be upgrading the brakes soon. The pic of the 16" GTA crosslaced wheels with 1LE brakes above looks like it would be SUPER tight if at all behind my 15" wheel. I will be running a 1/4-5/16 spacer on all 4 corners as well. I'm looking to keep my SE as "original" looking as possible externally (aside from a different base color down the line). What are my choices here? will the 1LE's clear? Or should I stick with stock rotor size but upgrade to better rotors and dual piston calipers with good pads? The rears are drum currently but I will be upgrading that soon as well. I ran the Wilwood 12.19" Rotor kit before and it cleared some wheels and not others. I ran LS1 brakes before with 16" wheels before but haven't tried anything with these. Any help would be appreciated.
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Old 01-06-2010, 12:56 PM
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Re: Brake upgrades and wheel fitment

Ok guys I have a 88 firebird which inhaveba fouth gen rear end under from a 99 with no brakes on it I have a chance to buy some c5s from a 97 does it matter what year c5 caliber I use
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Old 01-13-2010, 07:21 PM
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Re: Brake upgrades and wheel fitment

So I understand for the 91-92 16 inch wheels you can fit the front C5 brakes with a small amount of grinding. Correct me if I am wrong but the main difference between the C5 and the LS1 caliper is the cooling fins. So could I take my LS1 calipers, bolt them up to the C5 brackets and stick them under my 16s with the C5 13 inch rotors?
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Old 02-23-2010, 02:00 PM
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Re: Brake upgrades and wheel fitment

i got my 15" weld draglites to fit the LS1 rear with some grinding, shimming, and spacing.
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Old 02-25-2010, 10:02 PM
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Re: Brake upgrades and wheel fitment

looks like the LS1 fronts will fit the 15" weld draglites with just a 1/2" spacer. i'm waiting on the spacers from summit so i'm not 100% sure but pretty sure.
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Old 03-05-2010, 03:43 PM
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Re: Brake upgrades and wheel fitment

Hi
Can anyone tell me what hardware may be necessary to mount
the Ronal R-15s on a 1991 Z28 with standard front brakes?
I have one set from the "last batch" Ronal made which included
hardware listed as follows-unfortunately Ronal doesnt have this
application information

20 standard lugs(10 for some applications)
10 extended lugs for front wheels
4 hubcentric bushings (two for some applications)
2 hubcentric spacers for some front wheel applications

you can read this info on the florida ronal r-15 thread
apparently with the original batch of R-15s this hardware may or may not
have been included and one guy said people in the early days of this wheel were screaming their new wheels did not fit
and maybe this hardware was the "fix"

I would just like to know before I go out there and then
have to begin an experiment
and maybe someone can tell me how to ad a link to this post thanks
although I am starting to understand linkage what is the url of another thread?

Last edited by grassyflats; 03-05-2010 at 03:46 PM.
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Old 04-27-2010, 12:13 PM
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Re: Brake upgrades and wheel fitment

quick question... iroc 16x8 wheels rears..... will they work fine on the front with a 1/2 to 5/8" spacer or adapter... Are the spacers safe with factory studs ? Thanks 84 z-28
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Old 05-06-2010, 10:59 AM
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Re: Brake upgrades and wheel fitment

im running c5/ls1 hybrid(ebmiller setup) up front and stock disc in the rear...

looking to upgrade the rears sometimes this decade... thinking of going ls1...

btw im running 17inch SLP ZR1s
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Old 05-06-2010, 11:59 AM
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Re: Brake upgrades and wheel fitment

bad news, baer brakes doesnt make the 12" sport kit anymore
now I need to search for something else to fit behind 15 inch stock rims :S
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Old 05-07-2010, 04:24 PM
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Re: Brake upgrades and wheel fitment

How do u tell the difference between the one piston lt1 calibers and the 2 pistons ls1 calibers
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Old 10-19-2010, 10:48 PM
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Re: Brake upgrades and wheel fitment

Originally Posted by Kurtis2short View Post
How do u tell the difference between the one piston lt1 calibers and the 2 pistons ls1 calibers
the number of pistons.
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Old 03-26-2011, 04:14 PM
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Re: Brake upgrades and wheel fitment

I just upgraded to LS1 brakes on the front of my 92 vert and was wondering if the spare will fit over the LS1 brakes or will I need to pick up a 4thGen donut spare?
I'm not sure if the spare tires are the same for the verts as the coupe but it a self inflating type tire that you inflate with the can of air.
It's 19 years old so it probally won't work anyway.
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Old 03-29-2011, 09:06 PM
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Re: Brake upgrades and wheel fitment

Originally Posted by ebmiller88 View Post
A little late but no they won't, the LT1s are a different design than our stock front brakes.

Ed
Is that true of 4th Gen V6 brakes as well? (Reason I ask is I am buying an LS1 brake swap kit for my 4th Gen 3.8 car and I need new Calipers on my '86 with 16" GTAs.
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Old 05-09-2011, 01:12 AM
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Re: Brake upgrades and wheel fitment

Sorry for the bump of this thread but i think we should add more info on this thread. What size of wheels would be needed for cts-v with 14in rotors also for the 5th gen brakes waht size of wheels are needed?
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Old 09-11-2011, 08:03 AM
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Re: Brake upgrades and wheel fitment

Originally Posted by SiCkRs View Post
Sorry for the bump of this thread but i think we should add more info on this thread. What size of wheels would be needed for cts-v with 14in rotors also for the 5th gen brakes waht size of wheels are needed?
I'm with SiCkRs we need to add some more info to this. I would like to know what wheels are needed for them to fit over the new fifth gen Camaro and the CTS-V brakes. I've seen a few threads on here I do believe.
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Old 10-08-2011, 02:03 PM
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Re: Brake upgrades and wheel fitment

what all wood i need to do and get to do a c5 or a c6 brakes on a 1990 trans am GTA front and rear with drum
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Old 10-08-2011, 03:06 PM
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Re: Brake upgrades and wheel fitment

Originally Posted by 530*duncan View Post
what all wood i need to do and get to do a c5 or a c6 brakes on a 1990 trans am GTA front and rear with drum
you should try out bigbrakeupgrade.com i think hes the only one that offers that right now since eb miller has been to busy. As for brembo fifth gen i tried fitting them in a 18" the rears and looks like it might work but im not positive.
Heres some pics of mine with the test fit
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also a pic of my old cts v calipers i think they look sweet on these wheels

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Old 12-05-2011, 09:35 PM
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Re: Brake upgrades and wheel fitment

Do you have any pics of the fitment? I was thinking of putting the C6 Z06 front brakes on my GTA also. I already converted my C5 Z06 and used HRE 540 19"/20" wheels. Thinking about the same wheel package with the brakes for the GTA. What do you think?
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Old 12-06-2011, 07:05 PM
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Re: Brake upgrades and wheel fitment

Were you referring to me or who?
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Old 04-03-2012, 08:37 PM
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Re: Brake upgrades and wheel fitment

Hello all, I have a 87 Iroc Z28 350 TPI that I have just received and am in need of a full break overhaul. I need lines, rotors, calipers..... the whole deal. Should I stay stock and if not then what then should I purchase. This car will not be raced but I really like that stopping thing! Thanks for helping the noob.. now I'm off to find the wiring harness section..grin..
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Old 04-03-2012, 08:51 PM
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Re: Brake upgrades and wheel fitment

if your not doing anything crazy, just get new rotors and lines, and buy some good pads for it. Hawks or EBC stuff works well.

you cna upgrade to something else ifyou want, but be sure it fits in whatever wheel you have and figure will cost at least 700 bux to do a basic ls1/c5 setup, more if you done do any of the conversion work yourself.
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Old 04-03-2012, 08:57 PM
  #97  
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Re: Brake upgrades and wheel fitment

The car has been sitting for almost 4 years in my wifes families yard. The entire brake system is rusted, lines and all. We are going to restore her and just make it like it was on showroom floor. 63K on car, just was wondering what the best route was and vendor. Thanks for the direction!!
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Old 05-22-2012, 12:13 AM
  #98  
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Car: 1986 Firebird
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Re: Brake upgrades and wheel fitment

http://wilwood.com/BrakeKits/BrakeKi...20Brake%20Rear
Anyone know what rims to use with this? The I don't know about the center hub fitting behind formula rims?....

Last edited by Trevmust; 05-22-2012 at 12:19 AM.
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Old 07-24-2012, 11:28 AM
  #99  
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Join Date: Dec 2004
Location: Kennett Square, PA
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Car: 1988 GTA
Engine: 383 Stroker L98 TPI
Transmission: 700 R4 w/ B&M Shift Kit
Axle/Gears: Stock BW LS 9 Bolt with 3.27 gears
Re: Brake upgrades and wheel fitment

I feel like I'm going in circles reading this tread and not finding what I'm looking for. So I will resort to a post

What are the largest brakes that will fit under/behind 16" GTA crosslaced wheels. I have an 88 GTA stock set up that I'm in the process of upgrading. I have been to Ed's flynbye site but cannot tell what will fit based on his descriptions. My first step is to do the rear since I had a brakeline failure and decided to start there.
Thanks for your help
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Old 07-24-2012, 03:12 PM
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Re: Brake upgrades and wheel fitment

13"C4 HD Brakes are the biggest that fit behind 16 inch rims. Ordered a kit for mine from ed last week for my fronts, already have 12" 1LE brakes on the back.
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