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Discussion Starter #1 (Edited)
LS400 Caliper Install

this swap is from a 95-00 LS400 to the 01-05 IS300

Begin by collecting all the parts:

LS400 Calipers,
LS400 EBC greenstuff pads:



LS400 EBC Rotors:



FIGS RCA Spacer (contact for purchase):



Caliper adapters (FIGS):



'EARLS' Brake Lines 12"/Fittings/adapters:



MOTUL Brake Fluid:



Brake Parts Lubricant:




-- You have the option to choose whatever brands fits your preferences, this is what i have used and what i recommend. however there are many other very good brands for a variety of purposes and price points. this DIY will work for all brands! --

-- Also, i have chosen to use aftermarket SS braided lines and all new fittings. owever, stock lines/fittings will work with the LS400 calipers. --

TOOLS:
-breaker bar, or air
-ratchet
-sockets: 14, 17 (deep or small extension)
-allen socket: 10
-wrenches: 10, 13, 15, 18,
(may differ depending on the lines and hard ware you use)
-oil pan
-brake bleeder
-cut-off tool
-file (optional)
-pliers
-rubber mallet
-a press: decent sized hammer and deep socket works too, etc...
-coilover wrenches (optional)
-jack and jack stands
OR
-lift

Once your car is up on the lift OR the front end is jacked up, on stands, and wheels are off...LET'S BEGIN!


Using Stock lines:

- remove the banjo bolt from the stock caliper lines on the caliper only.
- and position it out of your way during the install


Using aftermarket lines:

- Disconnect brake line from hard line using the 10 wrench, dont strip it, it may be a tad hard to break loose.
- pull the clip that is holding the line in position
- you can leave the other end of the line (the banjo bolt/fitting) attached to the caliper

Caliper/Rotor Removal

Remove stock caliper by removing the two 17 bolts that hold it on from behind.

Remove stock rotor using either a rubber mallet or threading a bolt into the small hole near the center of the rotor to break the rotor loose, if it does not just pull right off.

RCA spacer install

Remove the two 17 bolts on the bottom behind the hub that are facing upward, where we will install the FIGS spacer!



with both bolts out, insert spacer...it will only go in one way. and reassemble using the longer bolts supplied by FIGS with the 10 allen socket:





Fully reassembled and re-tightened. Torque to 90 ft/lbs.



The spacer will also lower the front of the vehicle 1" so remember to raise your coilovers to compensate for the difference. this may be a good time to do that. (this may not apply to you if you do not have an adjustable suspension set up)

Dust Shield

Cut back dust shield, top and bottom, to clear the rotor. File edges (optional):

TOP:





BOTTOM:





DUST SHIELD FINISHED:



Place rotor on hub, secure with two lug nuts, and check for any rubbing. you may have to bend in or lightly hammer out the small divit in the center on the bottom of the dust shield and bend back the edges/corners of the dust shield using a pair of pliers for additional clearance. once all is clear, remove rotor.

Install the FIGS Caliper Adapters into the calipers. these are tapered and will only go in one way! however, they must be installed so that the holes are on the outside/farthest apart, and pressed in.





Install caliper with the two 17 bolts and 17 socket and ratchet to double check clearance and fitment, then remove.

Install the adapter onto the hard line using the 10 and 15, then secure with pin. install banjo fitting and tighten onto caliper using the 14 socket.

Install rotor and temporarily secure with 2 lug nuts. install caliper using the two 17 bolts and 17 socket and ratchet. tighten until snug, once again torque specs unknown, however they are not critical. just make sure they are tight!

Install brake line onto the banjo fitting with the 13 wrench, and then to the hard line adapter using the 13 and 15 wrench.


AND YOU ARE DONE WITH THE LS400 CALIPER SWAP!



Remember you still must bleed your brakes, reinstall your wheels, and lower your car from the jacks before you can hit the road! also follow the guidelines for proper rotor/pad break in.
 

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THE MAKER
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Torque RCA bolts to 90ft-lbs :)

when aligning the adapter inserts, I suggest that you do this loosely on the vehicle to position the adapters such that the caliper looks hubcentric. This is just getting the adapter aligned and starting on its taper so that the knuling is grabbing. Then when you remove the caliper, it should be aligned to press in. A shop press is really the best way to do it and make sure that no powdercoating or anything else is in these holes, other wise the adapters will have a hard time going in...and you make damange them..and you may call me asking me why they are so hard to press in ;)

Other than that, great write up. Glad you finally got around to doing this and DIY'ing it :)

As an aside, what kind of front sway do you have there?
 

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Discussion Starter #4
yeah, thats what i did at first and its just a tad tricky because the bolts arent quite long enough to reach the threads on the adapters. but they went it fairly smoothly, and worked out great!

actually, im not sure what sways they are...came on the car and dont have nay tags or name on them. i thought they were stock for the longest time lol
 

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Do you need new brake lines? Or is it possible to use the OEM lines?
 

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Do you need new brake lines? Or is it possible to use the OEM lines?
OEM lines will work.

Nice write up, I did this install too. Hardest part was getting the stock calipers off LOL whats the silver square piece on the back of the caliper? I dont have that on mine
 

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Is that a IS rotor or LS rotor? Nice write up BTW.
 

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Man I can't believe I missed this thread.

Time to get my calipers back from Fig, and order the TT and RCA adapters (sold the figs TT adapters awhile ago, doh!)

Will the stock IS300 braided brake lines work? I already have some Stoptechs on there.
 

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Discussion Starter #17
OEM lines will work.

Nice write up, I did this install too. Hardest part was getting the stock calipers off LOL whats the silver square piece on the back of the caliper? I dont have that on mine
Just to clarify, are you saying the OEM lines AND hardware (stock banjo, banjo bolt) work with LS400 calipers?


Will the stock IS300 braided brake lines work? I already have some Stoptechs on there.
if this is correct, then yes...any stock or aftermarket lines made for the stock IS300 calipers will also work with the LS400 calipers
 

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Aside from weight savings whats the biggest benefit of using the LS400 calipers over the Supra calipers? I have a broken Supra caliper and this might be something I am willing to look into. Will the Supra caliper adapters from fig work with the LS400 calipers?
 

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Aside from weight savings whats the biggest benefit of using the LS400 calipers over the Supra calipers? I have a broken Supra caliper and this might be something I am willing to look into. Will the Supra caliper adapters from fig work with the LS400 calipers?
Those are figs supra caliper adapters in OP's pictures. So do you think they'll fit?
 

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Discussion Starter #20
**same caliper adapter is used for both the Supra TT and LS400 calipers**

this same thing also confused me, because they are called TT adpaters...but they are the same i guess.


Aside from weight savings whats the biggest benefit of using the LS400 calipers over the Supra calipers?
i believe they are quite similar. however i have also heard the Supra might be a tad larger (rotor/pad size). not sure about the weight of them.

also, it seems as if you can find LS400 calipers at a better price than the TT calipers. thats why i went LS400. i got a good deal on the rotors ;)
 
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