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1
« Last post by Unit2berto on January 21, 2026, 05:38:39 PM »
Back spacing measurement 2 1/8" on this rotor the customer provided. Does any one have a measurement of the rotors they are using ?
2
« Last post by Unit2berto on January 21, 2026, 03:50:40 PM »
That is with a 10mm spacer behind the rotor hat in-between the hub.
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« Last post by Unit2berto on January 21, 2026, 03:03:57 PM »
Hey guys, my customer has brought me this kit to install and well lets just say its a very interesting job to make fit. I have a question about the back spacing of this rotor upgrade vs what ever you guys have been able to make work. I have 5 mm of washer as stated above but it seems to be out to lunch.
4
« Last post by cuttyman9 on December 08, 2025, 02:20:20 PM »
Section that needs clearancing
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« Last post by cuttyman9 on December 08, 2025, 02:19:48 PM »
This design requires a bit of clearancing on the backside lower section of the caliper, it interferes at full lock but can also have some work done to the ball joint/control arm as it is bulky in that area for no reason.
The rotors are 5x114.3 out of the box so if you wish to retain 5x100 you’ll need a 54.1 to 60.1 hub ring to match the rotors and a bit of Redrilling on the rotors.
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« Last post by Geeep on August 26, 2025, 10:06:30 PM »
I used 6th gen Celica front calipers on my 1990 Gts it still requires the washers but it bolted to the knuckle.
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« Last post by cuttyman9 on August 26, 2025, 02:18:18 PM »
Send cut send update! I’ve found I have no more time for offering these but send cut send now has a marketplace and I can offer them there direct for much cheaper because it cuts me out as middle man. The brackets will all be the same as the previous steel ones except that the thread pitch is m10-1.5 instead of m10-1.25(ones shipped through me) I will add the link here for anyone who wants it. https://marketplace.sendcutsend.com/p/CA84K723/2004-08-acura-tl-rear-brembo-bbk-brackets
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« Last post by cuttyman9 on August 16, 2025, 02:13:27 AM »
Looking into releasing a new file that uses a bolt that passes through rather than thread your own in the top post. M16-1.5x55mm needed for the front caliper to bracket. M16-1.5 nut, these will fit reversed installed on the bracket before installing the caliper and bracket over the rotor. M12-1.75x35mm needed for the bracket to the knuckle. M12-1.75 nut Purchase bolt through type here:
https://marketplace.sendcutsend.com/p/CY303139/lexus-sc300-supra-and-gs300-front-bbk-brackets-thru-hole-type
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« Last post by cuttyman9 on August 16, 2025, 02:12:24 AM »
Looking into releasing a new file that uses a bolt that passes through rather than thread your own in the top post.
M16-1.5x55mm needed for the front caliper to bracket.
M16-1.5 nut, these will fit reversed installed on the bracket before installing the caliper and bracket over the rotor.
M12-1.75x35mm needed for the bracket to the knuckle.
M12-1.75 nut
10
« Last post by cuttyman9 on August 16, 2025, 02:09:54 AM »
Looking into releasing a new file that uses a bolt that passes through rather than thread your own in the top post. M14-1.5x45mm needed for the front caliper to bracket. M14-1.5 nut M12-1.75x35mm needed for the bracket to the knuckle. M12-1.75 nut https://marketplace.sendcutsend.com/p/C030A012/lexus-is300-and-gs300-rear-bbk-brackets-thru-hole-type
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IS300 front BBK
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NEW Celica BBK - 6 piston goodness!
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5x114.3 Swap
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