Jump to content
View in the app

A better way to browse. Learn more.
300ZX Owners Club

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

U/D pulley size

This is possibly a long shot but does anyone have either a JDM or Underdrive crank pulley lying around that they could measure up for me? I am after the diameter of the largest section of the pulley. A close estimate is fine also. I just need to ascertain whether the pulley I've got sitting on the shelf is a U/D or stock sized (lightened) pulley.

 

Many thanks!

 

Dan

  • Quote

    • Featured Replies

    Hi there Danny

     

    if it's the one that would have three belts on it then I have an Unorthodox racing one (part No.0210106 rev E) which is 137mm approx in diameter.

     

    HTH

  • Quote
    • Author

    Gentlemen!

     

    Thank you VERY much indeed for the measurement information! It would appear that I've got one lightened stock crank pulley!

     

    All the best,

     

    Dan

  • Quote

    • Join the conversation

    You can post now and register later. If you have an account, sign in now to post with your account.

    Guest
    Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
    Reply to this topic...
    https://www.300zx-owners.club/forums/topic/98192-ud-pulley-size/
    Go to topic listing

    Recently Browsing 0

    • No registered users viewing this page.

    Important Information

    Terms of Use

    I accept

    Configure browser push notifications
    Chrome (Android)
    1. Tap the lock icon next to the address bar.
    2. Tap Permissions → Notifications.
    3. Adjust your preference.
    Chrome (Desktop)
    1. Click the padlock icon in the address bar.
    2. Select Site settings.
    3. Find Notifications and adjust your preference.