What size is my crank bolt?

Getting ready to do head gasket. anything I should be aware of any informational timing marks or stuff I should be aware of. Also the main question is what size is my crank nut. I would like to give this baby a leak down text before. To make sure 100% blew the head thank you taco gurus

 

22mm I believe

 

What is the truck doing that you believe it’s the hg?

 

If you are asking questions about anything you need to know about timing, are you sure you're ready to take on doing the head gasket/s?

 

You really want to be certain of both your diagnosis and of your repair procedures before just diving into a HG replacement.

Watching parts 1 & 2 of BOTH of the videos below will give you approximately 4,536% more information about HG diag & replace than you'll get from random replies here in this TW forums thread.

Good luck.

Head Gasket Diagnosis:

https://www.youtube.com/watch?v=uVn-IDi7da8

Head Gasket Replacement:

https://www.youtube.com/watch?v=06l5jHMZt0Y