hey guys i got a 1986 samurai i dont know much about the lockers i am not a rough 4wheeler but i would like it to go good if i need it. would adding lockers hurt the driving performance on the highway a bunch? and what kind and where to go to  buy them?

Lockers are a very popular discussion topic.  Take time to study the subject by searching on a few important keywords, here and elsewhere. Once you've become knowledgeable, ask specific questions about your situation. All the major Suzuki aftermarket sources sell lockers -- check 'em out. There's a big price and complexity difference between auto (full-time, $200) and manual (part-time, $800+) lockers.

Edit: I chose a rear auto-locker for both simplicity and cost. It has some quirky behavior on asphalt, but I've learned to adjust.  A front locker can make 4WD steering difficult, so you might want to consider power steering and/or a twin-stick transfer-case shifter. I have both.

I second that, you need to research the different styles to decide what works best for you both on and off road and also in your budget, another thing to consider is do you want larger tires (full time lockers can stress the drive train and bigger tires will add to that stress mainly the drive lines and also the suspension) in the future and with them do you want to redo the gearing setup. If your budget allows it and you want gears I would suggest doing the gears (front and rear you do gears in one you have to do the other) at the same time you install any type of lockers since you will already have the axles torn apart.

I drive mine both on and off road. I tried the LockRight lockers front and rear and a Detriot locker in the rear. I got tired of the street manners of the auto-lockers and went to ARB lockers both front and rear. My only regret was wasting money on the auto-lockers and wished I would have saved some money and went ARB from the start.
With the ARB lockers they are either unlocked or locked on demand.... You don't even know they are there when they are unlocked. With the flip of a switch they are locked up solid.
ARB is expensive but I would do them again for anything seeing pavement use. Off-road only rig I would probably run something different just because of cost.