Does it really make that big of a differance on the Wolverine? I drive my buddy's polaris 500HO, and when i switch from 2x4 to 4x4 I can hardly fell the differance.

 

In 2WD the steering is much easier, not mention how quick you can do powerslides!

 

Also on a polaris just because you push the button for 4wd it's not actually pulling unless the back tire are going faster then the front ie spinning because of the way the front hubs are designed try that same thing with a suzuki quad runner and see if you notice a diff plus the polaris 500 has quite a bit of power

 

can I install it myself? Is it difficult?

 

It just depends on how mechanically inclined you are. The instructions are decent, and only hand tools are required. It took me about 1 1/2 hrs, after familiarizing myself witht he instruction sheet.

Surely you know someone who could help you, if you don't think you can do it yourself.