I own a 04 trailblazer with the 4.2 inline 6 (275 hp and 280 ft. lbs torque). I drove the Explorer and Durango v-8's and I'll take the 4.2. The Explorer wouldn't get out of it's own way. The trailblazer had 35 more hp than the explorer v8. Newer trailblazers were rated at 290 hp. The Durango was not a Hemi, however. Mine came with a 2" receiver hitch with wiring, trans cooler and posi rear. No problems in approx 50K miles. Pulls and stops my V20 with no problems. I also don't have trailer brakes. Schools, do you mean the v6 4.3 or the inline 4.2? I've owned both and I can't say anything bad about the 4.2. Willy, it sounds like you got a lemon. Just my $.02