GM wheels on a Mazda

I'm looking to put Cat Eye wheels off a Silverado on my B. I have a couple questions. One is will i need spacers. Two is what size tire do i need. Below is the Wheel that im looking at. I know its probably not what is common on these trucks but I like going against the grain.

You will have to shave the tabs on your axles to run those wheels. The center bore is not big enough to clear.

would you be able to show me an example of what that would look like.

You could pay to have the wheels bored out too, but I shaved tabs on 3 trucks... was easier to do, and then you don't have to keep paying to have new wheels bored out if you want to throw a different set on. What size are those chevy wheels?

You can see where there are no tabs on this front hub.

they are 17's they are off a 2wd and I believe the stock tire size was 245 70r 17 for this wheel and the 4wd i believe is 265 70r 17.

i ran a 225/45R17 when i had this wheel on mine and they fit pretty good

A 225 40, or 215 45 should do you well. Try out the tire calculator on discount tires website, put in the stock tire sizes, and choose plus sizing to a 17in wheel. The size it gives you is as close to stock overall tire diameter, but if your plan is low, choose a smaller profile tire than what the plus sizing guide suggests.

thanks that helps a lot. I Appreciate the help.