As seen on my.is.These Caliper adapters press into Supra TT 4-piston front calipers to adaptthem to the IS300. These are a press fit part, meaning a shop press or Heavyball joint service C-clamp is required for installation.

These will also workfor LS400 caliper although the alignment is not as simple. The Ls400 caliperlacks the flat mounts and so it must be test fit with the adapters part wayinstalled and using a long bolt. When located via this method, they can bepressed in after they are aligned. The LS400 also requires an RCA spacer tooffset the steering linkage and create clearance. We offer a separate kit thatincludes RCA spacers and hardware.

Features:

-SUS 303 precisionmachined thread adapters with tapered knurling.

-V6 now has arelaxed tolerance and requires using Loctite 620 retaining compound for use onaftermarket "replica" calipers.  The adapter will seat at thevery base of the hole opening but due to a huge variance in reman calipers.  

Small vials ofretaining compound are included with the kit.  Retaining compoundcures in the absence of oxygen and should be applied to knurl area prior topress fit.  Adapters press in as below with the widest pattern possible,fat side inward. Toyota "Sumitomo" badged calipers still press-fit soif that is what you have retaining compound should not be required. Our completeLS400 complete retrofit kit is available here.

NOTE: These are offered as a single part only.  Swapping these calipersrequires Supra TT rotors, dust shield trim or removal, and wheel spacers ifused on the factory 17" wheels(and most other wheels as well).  Ifyou are looking for a kit that will function better and not require spacersthan please look at either our  OE-+1 kit  or the lightweight aluminum caliper upgrade usingthe same rotors.   We offer this adapter kit with little support as wefeel there are much better options available at this time.