Some of you may have seen some of the information that I have helped contribute in the AR5 swap thread. Im finally getting around to getting mine put together. I have had some back and forth on what would fit my goals clutch kit wise, but here is what my final setup will look like.
AR5 5 speed, transmission mount/isolator
OS Giken R3C
OS Giken movement alteration kit
Sequioa custom driveshaft
Arp custom flywheel bolts
Drift Motion Stainless steel clutch line
New clutch pedal assembly/ Brake pedal assembly
New OEM R154 Slave Cylinder
New OEM R154 Bellhousing
New OEM R154 Retianer/ seal
New OEM Bellhousing covers
Here is the AR5 transmission when I got it delivered, I was able to sell the bellhousing and shifter assembly for what I basically paid for the transmission.
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Here is when I received another order from amayama. I had no R154 parts so I bought them new.
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with the jzx shifter housing it fits perfectly for the is300 application 29” from bellhousing front to center of shifter, exactly the measurement for the is300. The shifter housing is literally a bolt on part for the AR5, there is no modification necesary
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removed the retianer for R154 style retianer
cleaned up the old fipg
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put down some new fipg
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put on retianer seal
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and bolted up retianer
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put on the 2JZ r154 Bellhousing
A single disk clutch wasn’t going to work for my power goals, so after a lot of research I noticed a popular clucth was OS Giken. I had contacted driftmotion about getting custom disks for the AR5 26 spline input shaft, but they didn’t think the OS Giken would, and didn’t seem interested in finding out.
So I contacted OS giken USA and they said that the special order wouldn’t be a problem. I also noticed RHD Japan had much better prices with the OS Giken line, so after letting them know about my special Order, I ordered the RC3 triple disk clutch, with the OS Giken movement alteration kit.
Here it is
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When I received it, somehow my special order got overlooked, and I received the wrong clutch hub. They had filled the order with a regular 21 spline hub for a R154, when I had ordered 26 spline. Luckily it was no problem and they sent out the right hub.
One of the reasons I choose this clutch kit, is because the unique way the hub is seperate from the disk. So in the future when I get replacement disks, I wont have to worry about a special order, I can just get the regular disk rebuild kit for a r154.
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Installation of the movement alteration kit
I didnt receive instructions with my movement kit, but here is how I did mine.
Install this bracket, may note that the bottom side is longer than the top, if you dont install correctly it wont line up right. The guide post is also installed here. Everything has locktite on it.
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Then remove two bellhousing bolts, and install larger peice
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this part is tricky and dont know how to explain it but here is a picture lol.
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Slide on hub and put on the springs
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One of the big misconceptions out there is that you will need to trim 1” off the input shaft, but actually the input shaft could fit with out any modification. I decided however to trim 1/8' off the input shaft to make it resemble more like a r154 input shaft. I also tapered/rounded the tip to make it easier for installation.
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Install pilot Bearing, I got mine from driftmotion, but all you need is a pilot bearing with a ID 15mm and OD 32mm
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Install Flywheel. May note OS giken flywheel uses a reduced depth flywheel bolt, and that stock flywheel bolts torque specs are 36ftlbs + 90 degree. I used arp which has some different information out there, I just followed the instructions from drift motion where I bought the bolts, and used locktite and 75ftlbs.
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Mark them as I go, especially helpful when tightening the 18 bolt cover.
While not necessary I picked up a steel alignment tool to easy assembly of the multiplate clutch.
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assembly the clutch, locktite and 13ftlbs in the order provided from the instructions
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And finally the bolted up the transmission to the engine
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had to swap out the “slide pin?” on the slave cylinder to the one provided with the OS giken alteration kit.
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Install slave cylinder
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install cover plates
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