This is a 06 NISSAN UD 2600 Automatic Allison Transmission.  The model number is 2400 RDS. This transmission has overdrive.  It comes with a 90 Day warranty.  This transmission is currently in a 2006 UD 2600. Call 803-564-3228 if you have any further questions and ask for RT, Doug, or Louis. Buyer is responsible for all freight costs.  We will ship anywhere in the continental US.  Call or send your zip code for a freight quote.  Thank you for looking.