Wheel Upgrade

[SKinnaird]

I have a 2001 1500 2wd
Considering the following wheel/tire changes
Fronts -

Pro Comp 69 Series Vintage, 15×8 Wheel with 5 on 5.5 Bolt Pattern – Polished – 1069-5885​

These have 3.75" back spacing
Intended tire size is 225/50R 16

Backs -

Pro Comp 69 Series Vintage, 16×10 Wheel with 5 on 5.5 Bolt Pattern – Polished – 1069-6185​

These have 4.5" back spacing
Intended tire size is 315/75R 16

Any thoughts?