I wasn't planning on going to 37's but the more I mod my truck the more I feel like that is just the natural next evolution. So there are options now on fender liners once you you get fiber glass fenders. What are your thoughts? The metal ones seem like they'd be noisier, but they would certainly take a beating. The fiberglass would weigh less and might not be as noisy, but i'm not sure they'd handle the abuse of long term rock slinging. Which would you go with and what thoughts or arguments can you add to the pot?