I had this problem on my 33.
All you have to do is get metal polish and rub down your headlights with it. It will clear them right up. Obviously its not a permanent fix, but then again getting new headlights isn't permanent either.
The clouding/yellowing of your headlights comes from oxidization basically the water hits your headlights and dries up leaving a residue/rusting the plastic. Once you cut and polish it, it goes away for awhile say a year or two then just do it again. Simple, easy and cheap way to fix it.
Don't waste your money on new headlights if you don't have cracks in yours.. unless your printing money, in that case send me some haha.