What does the Movement Alteration Kit for JZA70 25mm do?

The Movement Alteration Kit for JZA70 25mm adapts the pull-type clutch release the JZA70 Supra had from the factory so it can operate the push-type OS Giken TR2CD clutch. Without it, the factory release system cannot work with that clutch.

Which clutch is it for?

Turn 14 lists this kit as required with the OS Giken TR2CD, part number TY021-BF6. Other OS Giken clutches for the JZA70 Supra are listed with their own kits, so match the kit to the clutch part number you are installing.

Can I use it with another brand of clutch?

No. OS Giken states that its Movement Alteration Kits are designed to work with OS Giken clutches, and that using one in an unintended application can cause clutch components to fail. Use it only with the clutch it is listed for.

Should it be installed with the clutch?

Yes. The kit changes how the release system operates, so it goes in during the same job as the clutch. Have both fitted by a shop familiar with multi-plate clutches, following the instructions OS Giken supplies with the parts. Our team can help with any questions.

What is the difference between the 25mm and 28mm kits?

OS Giken makes the JZA70 Movement Alteration Kit with a 25mm and a 28mm release sleeve, and the sleeve length is matched to the clutch it works with. Turn 14 lists this 25mm kit with the TR2CD. OS Giken also sells a replacement 25mm release sleeve, TY021-ALT25K.

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Description

OS Giken Movement Alteration Kit for JZA70 25mm Sleeve, Toyota Supra 1JZ-GTE R154

OS Giken’s Movement Alteration Kit for JZA70 25mm sleeve installs is the release conversion OS Giken lists for the 1JZ-GTE JZA70 Supra with the R154 gearbox, built around a 25mm release sleeve. It lets an OS Giken push-type clutch work with the pull-type release the car had from the factory. Turn 14 lists this kit by part number as required with the OS Giken TR2CD twin plate clutch for the JZA70. OS Giken also makes a 28mm sleeve version of the JZA70 kit, and the sleeve length is matched to the clutch, so the kit should be chosen by the clutch part number rather than by the car alone.

Why JZA70 Supra Owners Need It

The JZA70 Supra left the factory with a pull-type clutch release, and the TR2CD is a push-type OS Giken clutch. Turn 14 lists this kit as required with it. OS Giken designs its Movement Alteration Kits to work with OS Giken clutches only and warns that use in an unintended application can cause clutch components to fail.

Features

Lets a push-type OS Giken TR2CD run on the factory pull-type release
Listed by Turn 14 as required with the TY021-BF6
Designed to work with OS Giken clutches only
Installed together with the clutch

Applications

Toyota Supra: JZA70 | 1990-1993 | 2.5L 1JZ-GTE, R154 | with OS Giken TR2CD clutch

Notes

This Movement Alteration Kit for JZA70 25mm install is required with the OS Giken TR2CD Clutch for JZA70 Toyota Supra, sold separately
OS Giken designs this kit for its own clutches only
Installation labor is not included

Frequently Asked Questions

What does the Movement Alteration Kit for JZA70 25mm do? The Movement Alteration Kit for JZA70 25mm adapts the pull-type clutch release the JZA70 Supra had from the factory so it can operate the push-type OS Giken TR2CD clutch. Without it, the factory release system cannot work with that clutch.
Which clutch is it for? Turn 14 lists this kit as required with the OS Giken TR2CD, part number TY021-BF6. Other OS Giken clutches for the JZA70 Supra are listed with their own kits, so match the kit to the clutch part number you are installing.
Can I use it with another brand of clutch? No. OS Giken states that its Movement Alteration Kits are designed to work with OS Giken clutches, and that using one in an unintended application can cause clutch components to fail. Use it only with the clutch it is listed for.
Should it be installed with the clutch? Yes. The kit changes how the release system operates, so it goes in during the same job as the clutch. Have both fitted by a shop familiar with multi-plate clutches, following the instructions OS Giken supplies with the parts. Our team can help with any questions.
What is the difference between the 25mm and 28mm kits? OS Giken makes the JZA70 Movement Alteration Kit with a 25mm and a 28mm release sleeve, and the sleeve length is matched to the clutch it works with. Turn 14 lists this 25mm kit with the TR2CD. OS Giken also sells a replacement 25mm release sleeve, TY021-ALT25K.

About OS Giken

OS Giken was founded in Okayama, Japan in 1973 by Masaharu Okazaki. It built the TC16 and TC24-B1 DOHC cylinder heads for Nissan L-series engines, began making multi-plate racing clutches in 1982 and started supplying OEM limited-slip differentials in 1983. Development of the Super Lock LSD began in 1997, and of the OS-88 sequential gearbox for the Skyline GT-R in 1998.

Additional Information

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Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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OS Giken Movement Alteration Kit for JZA70 25mm Sleeve, Toyota Supra 1JZ-GTE R154 [TY021-ALT25]

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OS Giken Movement Alteration Kit for JZA70 25mm Sleeve, Toyota Supra 1JZ-GTE R154

Why JZA70 Supra Owners Need It

Features

Applications

Notes

Frequently Asked Questions

About OS Giken

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