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GS300 upgraded rear brake brackets LS430 calipers

XAT Racing 2GS Rear Brake Brackets for LS430 Calipers on GS400 GS300 GS430 SC430

You've asked for it, so here it is! At long last, a viable rear brake upgrade solution to go with our front LS460 brake option!!

Fitment confirmed on all 2GS cars, including:

  • 1998-2005 GS300
  • 1998-2000 GS400
  • 2001-2005 GS430
  • 1997-2006 Aristo
  • 2001-2010 SC430
  • 1998-2005 European and JDM IS200/IS300 (not USDM)

With these adapter brackets, you will also need:

  • 2001-2006 Lexus LS430 rear calipers
  • 2001-2006 Lexus LS430 rear brake pads and hardware kit
  • 1993-1998 Toyota Supra twin turbo rear rotors

And that's it! You can reuse factory brake lines, though we strongly recommend going with stainless braided lines for your application. Our brackets include mounting hardware, though you will also need the radial mount bolts for the caliper, which we have made an option as well. The factory Toyota/Lexus bolts aren't cheap, but they're perfectly suited for the task. They're thick, use rolled threads (instead of cut threads), and even come with thread locker pre-applied. Even if you plan on sourcing the rest of the kit yourself, we strongly recommend getting the caliper mount bolts from us at the same time at least

Please note you may need to shorten the caliper mount bolts ~1/16" for fitment. This otherwise is a bolt on kit.

Fits all 2GS cars (1998-2005 GS300, GS400, GS430), SC430, and 1998-2005 European and JDM IS200/IS300. May also fit others though this is unconfirmed. Most likely will not fit LS chassis. Does not fit 1GS cars (1992-1997 Aristo, GS300) or USDM IS300 2001-2005 without modifications to the bracket. We cannot accept returns on modified parts. Please contact us with your VIN to verify fitment.

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XAT Racing
  • $269
Only 10 left in stock

This kit uses LS430 rear radial mount calipers instead of the LS460 rears. Because of the constraints of the factory rear spindle/knuckle setup of the SC430 and 2GS (GS300, GS400, and GS430) cars, we opted not to make an adapter to use LS460 rear calipers. There isn't enough room to safely and easily mount the LS460 caliper with an inexpensive bracket design. As such, we have to go with a radial mount option, making fitment easier, though requiring a bit more work to produce than our front brackets.

We tried a number of different caliper considerations from assorted different manufacturers. There was no easy answer for an upgrade without breaking the bank. So we ended up going with a radial mount caliper design instead, which has more flexibility in being able to fit oversized brakes on a chassis that originally only came with solid rear discs.

One of the biggest advantages of this setup (and our biggest design consideration for this upgrade) is that you're able to make the jump to a vented rear rotor. Vented rotors provide better resistance to "brake fade" and warpage, both of which can become quite dangerous when running on any track or stopping from high speeds!

Free shipping applies only to brake brackets shipped in the continental 48 states. Please contact us for a shipping quote as we ship worldwide daily!

    • SKU
    • Weight
      2 lbs
  • Manufacturer
    XAT Racing
  • Caliper Mount Hardware
    OEM Lexus, No thanks, I will source myself
  • Calipers
    No thanks, I will source myself, Refurbished, Brand new OEM
  • StopTech Braided Brake Hose
    Yes! 2GS/SC430 Fitment, No
  • Brake Pads
    StopTech/Centric, Brembo, Bosch, ADVICS (OEM), None
  • Rotors
    Blanks, StopTech slotted, StopTech drilled, StopTech drilled AND slotted, None
  • LS460 Front Brake Brackets
    Yes! Include the front upgrade!, No thanks, I'll buy them later for a higher price
  • Safety & Compliance
    • Prop 65 Yes/No

Most product ships from either the manufacture or largest wholesale location to pass the saving to you. Most orders will ship via UPS, as we will be able to provide the best rates and have had the least issues when using UPS.

IF YOU DO NOT LIKE THE AUTOMATED SHIPPING CALCULATOR'S RATES, PLEASE CONTACT US AND WE CAN GET YOU A BETTER ONE! Especially for anyone outside the USA, please contact us with a list of parts you'd like to order, and where you are located.

We accept the following payment methods:

Also Venmo and unmarked nonsequential dollar bills

  • Fitment Type
    Vehicle Specific
Toyota/LexusLexus GS/Aristo1998-2005 S1601UZ VVTi 4.0 V8 (1998-2000) UZS160
Toyota/LexusLexus GS/Aristo1998-2005 S1602JZGE/2JZGTE 3.0 I6 (98-05) JZS160/JZS161
Toyota/LexusLexus GS/Aristo1998-2005 S1603UZ 4.3 V8 (2001-2005) UZS161
Toyota/LexusSupra1993-2002 A802JZ-GTE/2JZ-GE 3.0 I6 JZA80

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