4L60 Transmissions

[rhandwor]

Chevrolet has come with a new bolt for the bell housing.
http://image.snapon.com/internationa...fmts4e_npa.pdf This shows a picture and a Snap On bit.
My question is are they using a no.3 bit for the torque converter. I haven't found one on Snap On web site. Apex makes a 440-MT-00,440-MT-0,440-MT-1,440-MT-2. They list a 480-MT-3 and even gave me a price but then said they don't make it anymore.
Omega Tech 818-264-7970 lists a Zephyr Z5MT-3 which is a 5/16 inch bit.
Cost $15.60 minimum order 25 piece. 10-12 weeks wait.
If it is used for the torque converter I'm going to get an Ebay seller to get some made.