This is a 2000 Isuzu NPR. This truck contains the 5.7 gas engine along with a GM MT1 automatic transmission. This truck has a  G73 rear housing with RU1 differential gear. Specs on the frame are as follows – Frame Width 33.5 inches wide, Wheel Base is 133″. Feel free to call us with any other questions you may have about this truck or to check price and availability of parts off of this truck at 803-564-3228     VIN#4KLB4B1R2YJ805221     05/14/2021