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  1. J

    Allison 5sp: Failsafe on 2-3 shift in tow/haul mode only

    Both the turbine and output speed sensors were also replaced.
  2. J

    2003 Chevrolet Silverado 2500hd

    jonesjj42 submitted a new Showcase Item: 2003 Chevrolet Silverado 2500hd Read more about this showcase item here...
  3. 2003 Chevrolet Silverado 2500hd

    2003 Chevrolet Silverado 2500hd

    2003 Chevrolet Silverado 2500hd
  4. J

    Allison 5sp: Failsafe on 2-3 shift in tow/haul mode only

    Sorry about the signature. I live in Virginia Beach, VA and have a 2003 Silverado HD 4x2, and the only upgrade on it are 265/75 tires, 4 inch Banks exhaust, air filter, and waste gate. I used to run the Banks automind but took it out when all this started. It made no difference either way.
  5. J

    Allison 5sp: Failsafe on 2-3 shift in tow/haul mode only

    As background, I tow a 13-14 thousand pound 5th wheel. As recommended by the book, I use Tow/Haul mode for that weight. When accelerating onto the interstate, I got the loud bang, a jerk, and I’m in limp mode with “Shift Range Inhibited” on the DIC. The gear selector has a line under the correct...
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