Spare Tire size for 3500

[PapaJoe]

I did not find this discussed.
Anyone out there with a 2019+ 3500 that can confirm that they are toting a stock mounted spare up to 34.6", or larger?
I'm planning to put a set of Mickey Thompson Baja Boss AT tires (LT255/85R17) on my truck and they measure 34.6" diameter.

 

[Greenhills]

Full size 35 fits. Tight, but fits.

 

[PapaJoe]

Full size 35 fits. Tight, but fits.

Thanks. I crawled under one and measured and that's exactly what I concluded, but as always... in theory is one thing, while in reality is often different.