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  1. Transmission Mods
    I just bought a 04 trailblazer 4X4 with almost 200,000 miles. All other gears are working fine,just no 1st gear. I just replaced the 2 shift solenoids so i know that is not the problem. When I did replace the solenoids 1 of the popped off on its own, the other did not. I had to pry it off. I...
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