Description
3-4 Billet Shift Fork - Skyline R34
Made from 6061 -- Designed / Manufactured In-House by Jacks Transmissions
The 6061 plate has T651 temper, indicating it has been solution heat treated followed by a minimal stretching to reduce stresses in the material. The material was then artificially aged to allow the alloying elements to precipitate out of the material, to give immediate maximum strength.
