Jump to content
Sign in to follow this  
Chuck the old guy

3n71b bellhousing

Recommended Posts

The 3n71b automatic  transmission in my 85 720 is getting tired after about 300,00 miles . I have found a low mileage (64,000) replacement transmission in an 86 d21 with a v6 in it.  My question is "Is there a difference in  the bellhousing behind the v6 and behind my NAPZ engine? "  I  know these are separate bellhousings which bolt to the transmission but I am curious? 

Share this post


Link to post

The D21 will have an L4N71B possibly an E4N71B which is heavier duty. It's slightly efferent length and is a 4 speed automatic with overdrive. The bell housings as slightly different because they bolt to the OD unit.

 

L4N71B top and 3N71B bottom. Both are L series but Z would look similar

 

OJcTdVr.jpg

Share this post


Link to post

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
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.

Loading...
Sign in to follow this  

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.