I have an 80 k-10 and I am planing a build up but need guidence. I want to start with a lift but I dont know how big I should go 6" or 8" which company has the best lift? I want to run 39.5 boggers. Is this too much tire for stock drive train? The truck is not going to be show quality by any means. I will cut the fenders, and would like to have 39.5's but if I have to for reliability I would go with a 37 or 38.5. Is a regular swamper a better choice than a bogger? Rough country has a 6" that is resonably priced. Is this a good product?