I have a 05 4Runner V8 limited. The v8 comes with the full time AWD, unlike the v6 version. Just had it in for 15K service and guess what? Yeah, same ole clunk, and same ole story. Toyota is looking into it and will get back to me. Just don't pull too close to the intersection with your foot lightly on the brake, or you might just get a bigger "klunk" from another vehicle!