Thread: Rear brake disc thickness

Originally Posted by iPom

Thanks guys....DBA T2 are the go then. I see they also do a T3 version with heat indicators on them!! Bit over kill for me I guess.

They do do a 4x4 Survival Series T3 4000 Series ( Disc Brakes Australia | 4X4 Survival Series - Disc Brakes Australia ), but not for the D2 - Disc Brakes Australia | Online Catalogue - Disc Brakes Australia - T2 only (Part number: DBA 093S).

Originally Posted by twr7cx

They do do a 4x4 Survival Series T3 4000 Series ( Disc Brakes Australia | 4X4 Survival Series - Disc Brakes Australia ), but not for the D2 - Disc Brakes Australia | Online Catalogue - Disc Brakes Australia - T2 only (Part number: DBA 093S).

Which oddly enough is the same part number as the T2 street series.

T2 Street Series Front: DBA528S
T2 Street Series Rear: DBA093S

which would suggest the "4x4 Survival" packaging is a sop to those 4by drivers that don't think Street Series sounds tuff enuff.

Originally Posted by OffTrack

Which oddly enough is the same part number as the T2 street series.

T2 Street Series Front: DBA528S
T2 Street Series Rear: DBA093S

which would suggest the "4x4 Survival" packaging is a sop to those 4by drivers that don't think Street Series sounds tuff enuff.

Yes, the 4x4 Survival name tag is interchangeable with the Street Series, exact same product same denomination in the part number and both T2. From what I have seen the T2 for 4WD vehicles come in 4x4 Survival packaging while for non-4WD vehicles they come in Street Series packaging.
I can see why they would have done it though, as Street Series implies best for on road and urban environment, one would assume not necessarily the best for 4WDing.

Originally Posted by OffTrack

I wasn't having a go - it's just that it seems to be trotted out pretty frequently on many forums as a warning but I don't understand how dusty pads are supposed to trigger the amigos?? I can understand squealing brakes will set off the amigo's - I've had it happen once myself - so I'm guessing that cheap pads which are prone to squealing are to blame. I'm just not convinced that there is a correlation between dust and squealing.

Ultimately as long as you buy decent pads I doubt you'll have any dramas. If you read the US forums they are hot for Akebono ceramic brake pads and DBA X-drilled rotors on the D2, while the Expedition Exchange site recommends DBA X-drilled with LR pads, the UK forums seem to love EBC green stuff, while Urban Panzer installed Mintex vented (standard replacement) discs and pads and Aulroians seem to have a predilection for DBA or RDA rotors and Bendix 4x4 pads apparently because Australian made is better than the junk everyone else knocks out

No offence taken Paul....Thanks for your input.....It is always greatly appreciated....To quote my favourite scientist..

"Do not believe everything you read on the internet"..Albert Einstein 1955.

Dave

Comparing rotors today due to the two week wait for the DBA T2's to suit.
I have found RDA Slotted rotors ( http://rdabrakes.com.au/index.php/rotors.html ) to be significantly cheaper than the DBA T2's (about 60% of the price).
Also found that RDA do Gold rotors ( http://rdabrakes.com.au/index.php/rotors.html ), which are slotted and dimpled (not cross drilled) - twice the price though but they do look good... Apparently they are zinc plated and gold passivated to avoid corrosion - which would be a good thing as the back of my vehicle is reguarly in salt water. I do note that I have read a lot about RDA's rotors corroding as apparently their standard and slotted models are not painted and treated like the DBA ones (which is probably the difference in the pricing).

So...What are you going to decide on??

The DBA discs for the D2 are apparently made to order and have a 2-4 week lead time. It's unfortunately something you have to live with if you want their products it seems.

The DBA rotors have their "kangaroo paw" venting which is another point of difference to the RDA discs. In theory this should improve cooling on the front rotors.

These were a few pics I took when I did my brakes. I ordered the Street Series got a blend of 4x4 survival and street series packaging.

The finish and machining on the T2 rotors is amazingly good. I do get a bit of surface rust on the faces when the discs have been wet and left to stand for a few days but that disappears the first time you hit the brakes.

If you can live without instant gratification the DBA rotors won't disappoint.

I got mine from this mob:

https://www.sparespro.com.au/product...d=19747&page=1

https://www.sparespro.com.au/product...d=19746&page=1

Originally Posted by OffTrack

The DBA discs for the D2 are apparently made to order and have a 2-4 week lead time. It's unfortunately something you have to live with if you want their products it seems.

Yeah, there is a two week wait to order the T2's and then up to a week for them to get from DBA to Hobart afterwards.

Originally Posted by OffTrack

The DBA rotors have their "kangaroo paw" venting which is another point of difference to the RDA discs. In theory this should improve cooling on the front rotors.

The rear discs are solids, sop there is no venting. The rear discs, even DBA brand units, do not have "Kangaroo Paw" or any other style of venting - this would only apply to the front. You can see on the box in one of the pictures you have put up that where it states Kangaroo Paw venting as a feature it has an astrix next to it that reads that it is not applicable to all part numbers.

My front rotors are still good (they're slotted and were redone by the previous owner), so no need to touch them at the moment.

Originally Posted by OffTrack

I do get a bit of surface rust on the faces when the discs have been wet and left to stand for a few days but that disappears the first time you hit the brakes.

This is to be expected though, so long as the hubs and that aren't rusting up. My previous ride was a 1998 Ford Explorer XT and after years of having the ass end in salt water launching boats the brakes were a horrible rusted up mess. Over summer my D2a spends a lot of time on beaches and boat ramps so I'm particularly cautious about anti corrosion on the rear brakes.