Bill Dearborn

A number of people have done this over the years. From 01-04 you don't need to worry about the bias spring since the cars don't have one. Proportioning in those years was done by the EBCM. Most people used the C5 front rotor as it didn't take any special brackets to hook everything up although you will lose the parking brake doing this. I don't know how the C5/C6 base front rotor compares in size (thickness and diameter) to the C6 Z51 rear rotor but if you don't mind losing the parking brake which is pretty much useless anyways use the C5 front rotor.

Bill

TriplBlk

How is the parking brak useless? Lol in racing yes. Not the street.

And you won't lose it if you use a Z51 rear rotor.

lionelhutz

The interesting part about this mod is the "yes it can be done but I won't tell you how" mentality from those that have done it. Of course, they are either making money off of doing the mod or they spent money on the mod so they won't tell you how to do it yourself.

I need new brakes and I'm tempted to buy C6Z51 rear rotors to figure it out and then post pics of what to do. Maybe if I find time between all the other projects...

Peter

TriplBlk

Peter when I can get around to pulling my wheels off I have no problem slapping my old front ones on the back. I still have to do my fuel lines but maybe I can squeeze this in too.

Bill Dearborn

Maybe things have changed in the C5 world since I left it two years ago but it used to be the parking brake was one of the biggest jokes there was. Most of them didn't hold well and there were a lot of complaints over the 10 years I was involved with the C5 forums. I know the ones on my 97 and 03 didn't hold well.

Bill

TriplBlk

Oh wow that's honestly the first time I've heard of that. Thanks bill. My friend 98 went out and he just lived with it. My 2000 works nice. My dad even tightened it up just a hair o it grabs better and quicker

joeflyer

My parking brake didn't work worth a crap for 11 years. Recently I pulled the rotors off and adjusted both sides. Now the brake holds just fine on steep hills, with the transmission in neutral.

cdkcorvette7

My parking brake works fine; but that's probably because I adjust it about twice a year... It only takes about ten minutes to do. If your ebrake won't hold your car up to a degree you won't pass inspection in VA.

TriplBlk

General maintenance man I love having it. Especially putting money into the body and if it isnt working properly ...we have a problem lol.

alxltd1

If I may ask, are you running the stock C5 size rotor (12.8") in front and the C6 Z51 (13.0") in the rear with C5 front calipers? I know you stated that you cannot comment on what is needed to do so, but do you know if the C5 front caliper brackets were used in the rear as well? Thanks for anything you can share.

HiVoltge

Hi, yes stock size C5 front rotor and c6Z51 rear rotor..with c5 front caliper in the rear. I believe the rear bracket is a C5 front caliper bracket, but with some minor machining work required for it to fit propery...

Caesar68

If you look at the first picture in this thread, I believe that assembly is all C6 Z51 components. This is according to the owner of that silver car, can't find that thread now

TriplBlk

Your right. The rear is all Z51 parts.

HiVoltage is there any chance you could take your rim off and snap some pics so we know if the are any additional brackets for the rear besides Z51 stuff.

SacCityCorvette

Maybe I missed it, but if I install C6 Z51 rear rotors and C5 front calipers what caliper bracket do I use or do they just bolt up?

TriplBlk

Most likely you will use a Z51 front bracket to raise the caliper higher on the bigger rotor

I have an idea to use C6Z06 front brakes all the way around and I'll lose my parking brake BUT I can install a line lock on the rear and bam aux. Parking brake

SacCityCorvette

I have a 02 Z06 with 14" Wilwood rotors with 6 piston Wilwood calipers in the front.
The stock rears are to small. Putting the the C5 fronts in the rear might be a good way to go and save $. I want to keep the E brake so C6 Z51 rotors look like the way to go.

TriplBlk

The z51 rotors and the z51 front bracket. But it would be nice to see how it's mounted.

ISeeRed

If I were doing this mod, I'd at least do C6Z51 rotors front and rear. Meaning I would put the bigger front rotors on with the different Z51 caliper bracket and use the C6Z51 rear rotors on the back to retain the parking brake. That would yield a larger front rotor and a larger rear rotor than the stock C5 had and would seem to be a more natural fit. You would just have twin piston rear calipers instead of single piston calipers and a larger brake pad, but rotor sizes would be proportional rather than a larger rear rotor than front rotor....which seems a little weird to me....even if it works fine..... My 2 cents.

alxltd1

You may be right, but my thought was to save a little money, but not at the expense of function and safety. The C6 Z51 rear rotor would allow keeping the e-brake it seems, and is only 2 tenths of an inch larger than the C5 front rotor so would not be noticeable. If the C5 front caliper will work using the C5 or C6 Z51 front bracket then it would also provide the "corvette" logo front and rear, strictly show but a nice touch. If all this works without causing any loss of braking function or lock up of the ABS on hard stops I just may do it. I would only have to obtain the C6 Z51 rear rotors and front caliper brackets as I already have a spare set of front C5 calipers. I will keep tuned here to see what other info surfaces.

alxltd1

Thanks, and if you could post a pic like others have requested that would be great. Wonder if you were to use the C6 Z51 front bracket would you avoid having to modify the bracket as it seems required if you use the C5 front bracket?