[Newbie] Spindle thread size

[Tintop50]

I have a craftsman 101-07403 and I need a chuck but need to know what size and thread the spindle is

 

[Choiliefan]

Should be 1-1/2"-8.

http://vintagemachinery.org/pubs/222/27468.pdf

 

[RandyM]

I have a craftsman 101-07403 and I need a chuck but need to know what size and thread the spindle is

Sounds like you could use some measuring tools before the chuck. I tend to use situations like this to acquire my tools. If the need arises once, it will arise again. Good luck with your chuck purchase.