Friend of mine just bought a used 1999 3500 Dodge 4x4 Quad cab. It has the 6 speed transmission. He said it came from the factory with the H. O. Engine 245 h. p. & 505 lbs. Torque & that they manufactured 1000 of these trucks that year. I think NOT! and that the first H. O. Engines were put in the 2001 trucks only and that the 1999&2000 trucks with 6 speeds came with the Standard lower horsepower diesel about 215 H. P. Anyone know the true answer???