Unfortunately Mac a 2x4 just will not have the traction a 4x4 will.
The nightmare issues a 2 wheel drive can have just will not be an issue with a 4x4 (many times).
I recently put my self in a dangerous situation 'thinking' I would go 2 wheel drive
up my icy snowy driveway. Yikes!
Got sideways in a bad location...
Put it in 4x4 and still had a rough time to get rolling uphill.
MOMENTUM AND 4x4 sometimes is the only way. I could roll right up with 3-5 mph momentum every time (icy snow on my driveway for three weeks-got plenty of practice).
Siping tires is a huge aid also.
My Toyota 4x4 and the g/f's Subaru were actually more effective than my van.
This driveway