My Factory Shop manual only lists minimum thickness for GSL type solid read discs.

Nothing on Mazdatrix site.

Nothing came up after 6 searchs.

There are no markings on the disc's themselves.

So, anybody know what the minimum thickness (run out) for GSL-SE rear brake disc??

 

Turning brake rotors is a waste new ones are cheap plus you can get vented or slotted for like under 250$ Front and Rear.

 

Rear Discs on the LSD I have (GSL) are unvented... Is it a straight swap to make them vented?

 

Yup i just purchesd mine for 174.99 Front and Rear.

Here is the website

http://cgi.ebay.com/ebaymotors/ws/eB...m=280145524184

Great deal and there good rotors, second time i have bought from these guys.

 

And I can get them turned for $7.50 each.

Anybody know the minimum thickness???

 

Hold on, ill get my book and check.

 

.354 K of an inch

 

Thats for solid rear discs. Same minimum for 2nd Gen solid rear disc.

I'm really wondering if minimum for Vented rear discs on a GSLSE is the same as for a 2nd gen considering they both use the same brake pads

 

Yah i would say they are but it might make a differnce wether they are zinch coated or not.

Cant help you witht that but good luck.
By the way you didnt mention it was for vented very clearly. No Offence

 

All GSLSE rear discs are vented. No offense taken.

 

Really cuz i got one in my shop right now that has solid rear disc's????????

Im going to go home and get my camera ill be back in 15 minutes.

 

Solid rear discs were on GSL's.

 

22 MM with a minimum of 20MM for GSL-SE

It was not listed in the brake section of the service manual, I found it in technical data.

All GSL-SE were vented, None of the GSL were vented.

I think he meant drilled or slotted. You will not find anyone selling vented rotors for a direct replacement of a non vented rotor. The venting would weaken the rotor to much.

-billy

 

So it is the same as for a 2nd Gen. Logical.

Page 30-9 in the FSM. Got it.

Thanks

 

Ok, I'm going to bring this up again as on second review .866 (22MM) standard and .787 in. (20MM) minimum makes no sense even though thats what the bood says. My existing ones measure at .76 and no wear lip on the edge. So, the entire disc would have had to wear .1 inches since last brake job while my existing pads have about 70% pad left.

The GSL-SE uses the same rear pads as a 2nd Gen, and rear disc standard on a 2nd Gen is .787 in (20MM) and minimum .71 (18MM). I have to believe rear discs on a 2nd Gen and GSL-SE are the same thickness standard.

Further, if the FSM is correct, on a GSLSE front discs standard are thinner (18MM) than the rear (22MM)

Anybody that has access to a new GSL-SE rear disc, please measure and post how thick it is. THAT should clear all this up. Wouldn't be the first time some wrong information was in a FSM.

I'm going to start a second thread with the bold part as subject line to be sure this is seen.

 

front rotors shound be .866" when new, discard at .787".

rear rotors should be .787" when new, discard at .709"