I thought the spicer 760x was the correct replacement part number for my D44 front axle but it seems too long.

Can anyone confirm the correct spicer part number?

 

Use these two PDF's to look it up but you'll need the BOM number off the tag on the front diff cover. I have a 79 3/4 frame with a 78 dana 44 that's why it's better to use the tag info if you can
http://www2.dana.com/pdf/X510-SD.pdf page 54 or so

http://www2.dana.com/pdf/XGI.PDF page 67