Jump to content

1981 R754ST


Recommended Posts

Well if that reads correct at 425 HP then it would have a 4MG or 3ZJ air to air. The 4MG didn't come out untill 1986. So I would think it probably has a 7FB 400 HP B model in it. And some installed that super ten in there. Those transmissions were not available in 81. Although it is a easy swap, the super ten is the same length as a 13spd. Heavy duty looking truck though.

Truck Shop



One ping only

Link to comment
Share on other sites

Join the conversation

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

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Create New...