Ok so new ring and pinion and wheel bearings, because I don't wanna go too cheap, you get what you pay for, but would $300-500 be a cheap set?IMO stick with the cheap ring and pinion kit, that will get you what you need for now. I would also replace you wheel bearing in the axle the same time. This will get you the gears you want......new bearings, which will get the reliability you are after.