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View Full Version : 1967-1968 GM 2 Piece Rotors


jasonL78
12-28-2011, 03:13 AM
Has any one bought the aftermarket 2 piece rotors. I see that heartbeat city has 2 designs one made in china for 149.00 and one made in the good old USA for 239.00. Any input on either?

I have my originals I am going to try and have turned. But one looks like it is to far gone. Just looking for a back up plan?

Thanks Jason

x77-69z28
12-28-2011, 06:03 PM
i have not had any experience with either, but i wouldnt buy chinese anything.

MosportGreen66
12-28-2011, 09:13 PM
Jason, I would check ebay. A bunch of originals have recently popped up.

My Z28 with 135k on the clock had its original 2 peice rotors and rear drums with plently of surface on both. With a good cut we were in business. Can you post photos of yours?

jasonL78
12-28-2011, 09:20 PM
I have 2 sets to work with 1 rotor is way to thin to be re-surfaced. I am bringing three with me to be resurfaced hopefully I end up with a good pair. I will post pictures after I get them all restored. I have one with the 3910881 part number on the back that has holes along the front of the rotor? Anyone ever see that before? Only 1 of 4 where like this??

PS If you read the discription over at Heartbeat City it sounds like the made in china ones are junk. Well that is the way I read it.

1969z280
12-28-2011, 09:26 PM
Rotors and drums have tolerance specifications. You should have them mic'd by a credible facility before and after they are cut. Dan, I would be hesitant about buying used rotors as they may just be boat anchors.

Regarding HBC, just call Jim Stubbings and ask about the American rotors. When it comes to brake system components, you can't be too safe. If you're going to drive it, use new high quality components. JMO, Ed

67 Nova Boy
12-29-2011, 12:40 AM
2 Piece rotor thickness should NOT go below .965...maybe .960
Throw away items after that... too thin.

Dave
67 Nova Boy

jasonL78
12-29-2011, 01:13 AM
Thanks for that spec I will mic mine for sure to see where I am at.

Thanks Jason

67 Nova Boy
12-29-2011, 05:03 AM
Good luck with your rotors! Do you need a NOS GM front caliper brake hose? I only have one as my dog liked the other as a chew toy!! <<GRAEMLIN_URL>>/burnout.gif

Dave
67 Nova Boy

jasonL78
01-03-2012, 02:23 AM
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: MosportGreen66</div><div class="ubbcode-body">Jason, I would check ebay. A bunch of originals have recently popped up.

My Z28 with 135k on the clock had its original 2 peice rotors and rear drums with plently of surface on both. With a good cut we were in business. Can you post photos of yours? </div></div>

Well I was able to save all three rotors. The machine shop said .970 was the disgard measurement. He was able to bring all three down to .975. They will do for now. Only one of the three I think was an original. It had the part number on the backside and holes drilled along the face as pictured.

http://i35.photobucket.com/albums/d189/jasonchale/001-3.jpg

67 Nova Boy
01-03-2012, 04:37 AM
Jason,
Very glad to see you were able to save the rotors!! Do you know what the other non original were?

Dave
67 Nova Boy

jasonL78
01-03-2012, 12:37 PM
No numbers at all. Must have been replacements???

jasonL78
01-03-2012, 09:14 PM
Looking for a little help. I am trying to find a set of brake pads for these 4 piston calipers at my local auto parts store. They sold me a set but they don't fit. I think they are for the rear caliper for the JL8 option. Are the rear calipers different? (I had them look up the pads for a 68 camaro with disk brakes and I remember him asking me if the rears were the same?) I am going back today to see if they can get the front brake pads? Anyone buy a set lately? If so what brand? It seems to be harder to find parts for these cars at the local auto parts stores? I tried to get the rubber bushings for the top of the front shocks. Monroe discontinued them. I was shocked. LOL!

FYI if you order the reproduction front spiral shock's they don't come with the rubber bushings to mount the shocks. At 80.00 dollars a piece you would think they would include the mounting hardware.

67 Nova Boy
01-04-2012, 12:05 AM
Jason,
Are the original Disc brake pads #5463191{Sup...#5468766}

I have 10 sets of NOS GM pads.

Dave
67 Nova Boy

jasonL78
01-04-2012, 12:26 AM
This is what I need. Acording to the link I need this number 5470879????

http://www.ebay.co.uk/itm/NOS-DISC-BRAKE-PADS-NOVA-CHEVELLE-CAMARO-IMPALA-67-68-/160622277239

67 Nova Boy
01-04-2012, 01:57 AM
They must be Chevelle or? I can look them up if you want to sure but my GM parts book says...#5463191 for ALL 1968 w/Disc brakes. sup...5468766 OR heavy duty pads..#5468296

Dave
67 Nova Boy