This 2400 Allison transmission is from an 01 GMC T6500 and will fit all GMC and Chevrolet W/T and C-series trucks as well as Isuzu trucks. It can aslo be found in Hino and UD mid-range trucks. Call for pricing and availability. Call 1-877-564-6307 if you have any further questions and ask for RJ, RT, Doug or Ronnie.