I just purchased a set of "take-offs"(wheels and tires) and had to have the rears mounted on the old wheels because the "take-offs" came off a IRS machine and mine is straight axle. I left the fronts on the new wheels. When I put the fronts on with the new wheels they seem to stick further out than the stock wheels - will this hurt anything?

 

It will not hurt anything the new wheels you put on had a greater offset. most Kodiak owners actually prefer the wider stance. Usually they will do it in the front and rear. The only downfall that you may notice is the quad will be a little harder to steer but will be more stable on off camber surfaces

Is this a 4x4 or 2wd?

 

4x4 - Just worried since the back are not as wide it would cause a problem.

 

as long as they are the correct diameter you will not have an issue.