When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
2020 Corvette of the Year Finalist (appearance mods)
C7 of Year Winner (appearance mods) 2019
2017 C7 of Year Finalist
2015 C7 of the Year
St. Jude Donor '14-'15-'16-'17-'18-'19
New Z51 Stingray Front Brake Rotor Design for 2017 Model Year
The photo below shows the new rotor design for 2017 Z51 Stingrays. (This does not apply to 2017 Grand Sports since the Grand Sport has the Z06 brake package.)
Cooling rings will not come with the 2017 Z51 Stingray since they are no longer necessary due to the new design.
Bulletin #16-NA-170, May 28, 2016, Updated July 20, 2016
Last edited by jagamajajaran; 09-06-2016 at 07:10 AM.
This is what I posted on May 31, 2016 regarding the new Z51 brake rotors....
"Are you aware that GM has redesigned the J55 brake rotors from the original two piece design to a new, replacement one piece design. Apparently, the two piece design(that GM touted as ground braking) wasn't all it was cracked up to be.
It's still slotted though, just not of the two piece design."
The TSB was for the dealers to replace warped brake rotors with the new designed ones on older(than 2017 models) Z51's.
Dragging this up from the dead just to add a little info. This week the dealership replaced my set of 2014 Z51 rotors at 32k miles with the revised set under warranty. They found lateral runout to be 1.04mm front and 0.42mm rear which explains the pulsation once the heated up. The car has seem some aggressive street use, but has never been on the track (nor have the rotor cooling rings been removed from the original plastic packaging).
While they were in there, I also had them swap out the factory pads with Powerstop Z26 pads on my dime.
I do get this vibration in my 16 z51 which was built in early February. It is funny that when ever I have purchased and after market brake kit they always charged more for 2pc rather than 1pc. So the 1pc is better after all?
The single piece cast is cheaper, and has proven more reliable (although heavier unfortunately) than the original "experimental" bi-cast design. Basically, they attempted to make a poor man's 2-piece rotor and it failed. The Z06 and GS still get the superior true 2-piece rotor design.
09-06-2016, 12:56 AM
New Z51 Stingray Front Brake Rotor Design for 2017 Model Year
