MTFCA Forum

Posted: **Fri Jul 12, 2024 8:50 pm**

I am looking for a chart or something that lists proper thread pictures and sizes for the Model T. I have numerous bolts and nuts I would like to use a tap and die set on but do not have a gauge and could not find what I was hoping for on the website. Specifically I am looking for the size of the U joint 4th Main on the back of the transmission. A general idea on the rest will be wonderful too. Thank you!

Posted: **Fri Jul 12, 2024 8:56 pm**

On right top corner of this Forum page is the camera icon for Gallery, open that and scroll to Bolt Charts. Lots of thread and length info and where used.

Sample part of Gallery pages showing ball cap screw 4th main.

Posted: **Fri Jul 12, 2024 9:03 pm**

I believe the 4 bolts at the fourth main are 3/8-24.

Posted: **Fri Jul 12, 2024 9:17 pm**

There are quite a few errors on this bolt chart.

Posted: **Sat Jul 13, 2024 9:52 am**

Possible errors notwithstanding, Adrian is to be commended for such an effort. If we share any errors with him as they are found, it will become the ultimate fastener guide for the Model T.

Back to your question: Remember, two of the bolts on the 4th main have drilled heads for safety wire - the other two are drilled for castle nuts and cotter pins.