kphu

iTrader: (8)

I have 120K on the odom and have replaced the pads in the rear. Don't think I ever replaced the rotors back there though.

I picked one up last year at as you suggested Harbor Freight so i'll be sure to use it.

Thanks

kphu

iTrader: (8)

That certainly puts things into perspective. Never occurred to me the lugs would flex but it does explain why it would cause rotors to warp. Almost sounds like the manufacturer can improve on the design of how the caliper mounts so it flexes in the same manner as the rotor...of course that's much easier said then done!

vxphan

you must replace both rear rotors and pads, not only the pads. I did the same thing and ran into problem until I replace rotors and pads. Don;t let the rotor intimidate you, it's looks good and smooth, does not mean within specs.

kphu

iTrader: (8)

bummer, looks like I have another big expense coming up. rotors and pads all around...

Any input on changing just 1 caliper as oppose to changing both?

vxphan

Kphu, don't thew the part to the front and caliper yet. Just do the rear completely and see if improvement. That will save you money. I replaced the rear with OEM pads and EBC rotors only cost me $150 parts.

shyguyF

did you use the torque wrench when putting each wheel back to the axles ? 85 f/lb for the lug nuts of gx470 .

kamlung

iTrader: (8)

you can always have the rotors turned (skimmed) if they are still within minimum spec... i've found that with heavier trucks/SUVs, the brakes can't handle the heat... so first chance i get at replacing the brakes, always go with a better pad... as someone mentioned in an earlier post, you will get a lot more brake dust, but at least it prolongs the rotor a bit... heat is the enemy so do everything you can to try and disperse it, especially on a 5000 truck...

and also, nowadays with the Made in China crap rotors, they don't last as long... everything is just one time use throwaway, so pop for a slightly better brand (i like Raybestos)

techrep

EBC rotors and Hawk LTS pads work awesome on my 09 GX...

cruzinZ

I had the same issue on a previous vehicle. My problem ended up being a stuck caliper. I would suggest getting a good quality set of rotors, pads and rebuilding the calipers.

techrep

spot on....

V8_Fan

1. Cheap rotors (auto parts stores don't sell high-end). Get a good brand. I've had ART cryo frozen rotors on my LX470 for 17 years, and there is little sign of wear! Just installed Stoptech slotted rotors on my LS. I'd probably avoid Powerstop (seems too cheap to be true?); EBC slotted rotors have gotten good reviews, too. You can also try frozenrotors.com. They told me they use Akebono blanks, slot them, then cryo freeze.
2. Did you bed in the brake pads? Many times when ppl think rotors are warped because they are grabbing, it's because of uneven brake compound deposited on the rotor surface. You also have to get the rotor up to temperature (like 500C), should have a bluish color if correctly bedded. What pads are you using?

ALAN553

The rotors and calipers are under sized for the GX, they heat up, rotors heat up, brake pad material coats the rotors and they shudder. 2010 Gx460, Lexus upgraded the front brakes, larger calipers and rotors….you can use the same parts in 470…makes a big difference