4L80E output shaft...my search-fu has failed

[V8Astro]

I started a post about my 4L80-E conversion already. My working 4L80E is a 2wd unit and I need to install the 4wd output shaft.

I can't find any info on which one I need. I've narrowed it down to 2 part numbers.

https://www.wittrans.com/SchematicParts.aspx?Transmission=4L80E&LinkCode=678

U34678P or U34678N

That's 3-3/4" or 5" length output. I have the NP208 tcase.

 

[Cucvnut]

Try calling advance adapters.