Extreme Rebuilds and Extreme Rebuilds Plus – Allison 1000 Extreme PLUS Rebuild of Allison 1000 5 Speed Automatic (includes Torque Converter) No reviews $11,596.10 inc. GST Extreme PLUS Rebuild of Allison 1000 6 Speed Automatic (includes Torque Converter) No reviews $11,596.10 inc. GST Contact us to arrange your Extreme or Extreme Plus Rebuild Now! Contact Us Now!