Toyota vs Lexus Brake Rotors

[sky jumper]

hopefully this isn't a dumb question - but has anyone had issues with OEM Toyota/Lexus brake parts fitment on Lexus vehicles? I bought Toyo/Lexus 43512-0E030 rotors from a local Toyota dealer. Box has both Toyo & Lexus "genuine" OEM parts logos. The part # is the same for both Lexus and Toyota vehicles, and is the prescribed part # for my 2011 RX350... but dang does it come close to rubbing on the caliper bracket, I mean too close for comfort... and sure enough the wife called me on her way home from work and said "the brakes are making a grinding sound". I took it for a drive and yep, it sounds like rotors rubbing on caliper brackets. This did not happen during the 5 mile test drive when the brakes were cold, but after 20 miles of stop & go city traffic. I checked both wheels for heat and both were cool and calipers same temp, so I don't think its caliper drag.

So I might put the old rotors back on temporarily, but there's no way this can be normal.

oddly enough I had fitment issues with the OEM pads as well... I couldn't get them to fit with the wear clips installed, so I left the clips off. I don't see how that would cause dragging/grinding?

Something is definitely off here. been doing brake jobs for 4 decades and never had this problem before.

 

[edyvw]

Is Lexus part number the same?

 

[The Critic]

Is the rotor sitting flush on the hub flange? Did you grind off all of the rust?

 

[LazyDog]

Did you compared the used rotors w/ the new ones. I normally put them back to back and check the size and studs holes.

 

[cptbarkey]

4runner and GX460 is supposedly the same, they are sitting on my garage shelf, tbd but i'm not worried.

 

[sky jumper]

Is the rotor sitting flush on the hub flange? Did you grind off all of the rust?

you might be on to something there. I did sand it, but it didn't go on smoothly and I used the lug nuts to seat it evenly, or so I thought. I'll check that again tomorrow. But the spacing was extremely close all around, and evenly so, not just on the outboard side.

as to the other points, yes same part number, and yes it matched up to the old rotor but obviously thicker.

 

[The Critic]

you might be on to something there. I did sand it, but it didn't go on smoothly and I used the lug nuts to push it on evenly, or so I thought. I'll check that again tomorrow. But the spacing was extremely close all around, and evenly so, not just on the outboard side.

Clean the area around the center ring very well. The Toyota rotors fit pretty tightly even when the hub is pristine, so if you had to use lug nuts, your rotor may not be sitting flush.

 

[97prizm]

hopefully this isn't a dumb question - but has anyone had issues with OEM Toyota/Lexus brake parts fitment on Lexus vehicles? I bought Toyo/Lexus 43512-0E030 rotors from a local Toyota dealer. Box has both Toyo & Lexus "genuine" OEM parts logos. The part # is the same for both Lexus and Toyota vehicles, and is the prescribed part # for my 2011 RX350... but dang does it come close to rubbing on the caliper bracket, I mean too close for comfort... and sure enough the wife called me on her way home from work and said "the brakes are making a grinding sound". I took it for a drive and yep, it sounds like rotors rubbing on caliper brackets. This did not happen during the 5 mile test drive when the brakes were cold, but after 20 miles of stop & go city traffic. I checked both wheels for heat and both were cool and calipers same temp, so I don't think its caliper drag.

So I might put the old rotors back on temporarily, but there's no way this can be normal.

oddly enough I had fitment issues with the OEM pads as well... I couldn't get them to fit with the wear clips installed, so I left the clips off. I don't see how that would cause dragging/grinding?

Something is definitely off here. been doing brake jobs for 4 decades and never had this problem before.

A few years ago a co-worker asked if I could help with a brake pad change on his 2000 Honda civic. The pads were close but didn't fit. On a hunch I went back to the parts store and a set of 2001 brake pads did fit. The only thing that I can think of is there a difference between the RX350 and rx350 F sport rotors/ part numbers? I worked for a Lexus dealership years ago and don't remember.

 

[iCurious]

Is the rotor sitting flush on the hub flange? Did you grind off all of the rust?

I think he is on to something.

 

[rijndael]

If your pads ride in clips like this, a 1 piece clip that bridges over the rotor covering both sides, make sure it's not touching the rotor's outside rim.


See the thin/narrow section that bridges the two sides.

 

[sky jumper]

well dang this is embarrassing... ok, yes I did take off the rotor to inspect the hub, and yes there was a bit of corrosion that probably did impede the rotor from sitting flush... but to my shock & horror -- before I even got to that point I realized that I hadn't torqued the wheel lugs after I did the original brake job! They were on snug, but not tight, much like you'd snug them with a 4 prong lug wrench before you drop the vehicle. I just totally forgot to go back and torque them after the fact. My only excuse is I did this brake job at 11pm and was completely exhausted and half asleep. I dove it some 5-8 miles test drive, and the wife drove it 40 miles one-way to work, and then 1/2 way back before she noticed the grinding sound... I guess it took that long for the lugs to work themselves loose? yikes! sending her back out tomorrow with hopefully better results.

 

[meep]

I’ve done this before. It does happen. And my brother did once as well - mom had me drive his vehicle when I visited out of state - determined it was loose lug nuts - and he’s good - he’s self-taught a lot of work and naturally good with his hands. It happens