Kirkey High back seats and anti Submarine strap

[magicmarto]

Hello All,
I have my kirkey high back seats mounted and in position.
I am now looking to secure the anti submarine strap. How far back from the opening in the kirkey seat bottom should I mount the strap?

Any and all input is appreciated. Photos are great too. Thanks guys
Have a great weekend
Martin

[CraigS]

https://grassrootsmotorsports.com/articles/strap-how-properly-install-racing-harness/
Also I think all the belt manufacturers have their own instructions.

[JohnK]

Here's the SFI Foundation guidance on proper seat belt installation:

https://www.sfifoundation.com/wp-content/pdfs/guidelines-bulletins/Seatbelt%20Installation%20Guide%2006-05-12.pdf