92 king quad 5 lug rear hub chage to 4 lug

If you bought the swingarms off the Quadrunner then It will work for sure, not sure with the swingarms off the Kingquad maybe but they've got a different setup when it comes to brakes. Although the bearings I think are the same for the kingquad and Quadrunner so you may be able to just slide the Quadrunner Hub right in.

Only other way to do it without swapping a bunch of suspension parts would be to purchase wheel adapters. If you can find a company that does this you could get them to make you a 5 to 4 stud wheel adapter. I looked several years back with not much luck. But maybe you'd have better luck then I did.

But if tires are your concern I then would suggest giving the Kenda Bear claws a try, (299's). I have a set on my 300 King Quad and they do great in various terrain. And they ride very good too.

Not sure about all the suspension parts and etc. The key will be the axel size and length of the axel insert portion of the hub. As stated, the bearings are the same, so we know the other critical measurement is the same.

Adaptors may be cheaper though.

Can you swap the 5 bolt hubs to 4 bolt hubs on a 1995 suzuki king quad 300 4x4?

I highly doubt it. Even if you could it would most likely require some major modifications to covert from 5 to 4 lug. I’m assuming you’re interested in doing this because you’d like to use some different wheels..? Even if this was the case, the front hubs don’t use the traditional 4/110 bolt pattern that most modern atvs use nowadays. The front on your 300 uses a 4/140 bolt pattern. So finding wheels for that would probably even be difficult.

I know, I looked for over a year on how to convert my 300’s 5 bolt pattern to 4. I even considered wheels adapters but no company made any. So I finally gave up after a year of looking for different ways.