I need to get new rotors for my 76 since mine have developed grooves in them. I was wondering what are some good rotors and where to get them at a decent price. My car is mostly a weekend cruiser with some autocross duty. It may become my full time autocross car if I can't figure out what is going on with my 73. I want solid rotors. There is no need for slots and drilled are too dangerous for racing. I just want some replacement rotors that will stand up to Hawk HPS brakes and will not crack or warp.

I dont' want to spend over 150 for a set of 4 and prefere to buy American. I have done some searching and found Muskegon Brake has a set of 4 for $99.95. Where are these made? Has anybody had any problems with those rotors? The cheapest ones i have found that say Made in America are $70 each. Anybody know where they have the best deal? I am not exactly cheap, but I am trying to save up for a house and want to spend as little as possible.

Also, another question is what is the difference between the front and rears? They look the same to me except the rears have more holes in them. Are they different because of the parking brake?

Thanks for any input.

This reminds me an old post about drilled rotors...

If they're not too badly scored, you may be able to turn your stock rotors. Have you miked them?

Check our favorite intergalactic auction site, I got a smokin' deal on AC Delco front and rears...I think the name was 'thepartslady'

If you are interested in US made drilled and slotted, check out Raybestos.

The rotors on sale are NOT made in the USA, but are quality rotors. It is hard to get an affordable rotor made in the US. I do have USA made rotors with the correct rivet holes for $75.95 ea.

They are really bad. It almost looks like a rock got under the pad and put about a 1/4" groove all the way around the rotor. It is on both right side rotors. I am going to go ahead and replace all 4, but will keep the two lefts for spares.

I do not want drilled or slotted. There is no advantage to either except a little bit of weight savings. My dad is a brake tech for Bosh at their proving grounds and have seen or done tests with all kinds of rotors. New style pads do not gas up like the old organic pads do, so there is no need to have the slots in there. I have seen drilled rotors crack after a day at the track. The only reason to have slotted or drilled are for looks, and on my car I don't care about looks.

You might also factor in a free shipping promotion due to their weight ,it can be as much as a rotor.

Your dad is a very smart man. Nothing like the voice of experience.

Get the best rotors you can find. Be aware that they will need to be checked for runout once installed and then corrected as required. Try to get runout below .003"

Before you remove the rotors you might want to check them with a micrometer, the minimum thickness is stamped on the edge but I think it is 1.215.
Next you can check that both sides are parallel to within .001.
The groove may not matter, see: www.oeqf.com/techinfo/index.htm
If you decide to try and apply a non directional finish before replacing your rotors mark one hole on each rotor and the lug it came off of so each rotor goes back on the same wheel in the same position.
I'm not sure but I think the front and rear rotors are the same except for the parking brake hole, those that know better can correct me.
Keep saving your money, it's a good time to buy a house.

The rotors are different and not interchangeable. There was a member here call mrgofaster that found out the hard way.

Hi Mike, now that you mention it I remember Mr. Gofasters posts, your right he put the fronts on the rear and the depth of the 'Hat' is different. Wonder if he ever got his Vette on the road? His videos were entertaining. Thanks for clearing that up.

Really, I've run drilled rotors in super coupé circuit racing on slicks and not had them crack. Do you guys make rotors out of cheese?

Yes, swiss cheese. It comes pre-drilled.

Considering that the rear rotors actually have a small drum built in for the parking brake I'd say they are different. While you have your rears off you might want to inspect all the drum hardware and change over to stainless steel hardware if needed. One of the big problems with the parking brake not working is rust causing the mechanism to freeze up.

Excuse me, but rotors made in the U. S. of A. are made of American cheese. None of the furrin stuff.

I'm sorry but I have to disagree with you...
French cheese is the best of the world...

Brie with crackers and wine....

As to the rotors, try NAPA, I found them there for a shockingly lo price, the box did say USA on it, but for 30 bux each I can't see how either.....



and yes the difference is a GM goof up, the rotors are identical appearing except one spot, and it's sneaky....the thickness of the top hat flange area that contacts the hub....rears are thinner than fronts by about 1/8 inch....the rotors I have seen have the ebrake area similarly machined, dunno why, just is.....the rotors were perfect in runout.