Generic Truck Chassis Frame v 1 3D model is available on CGTrader for $79. Original author: ZUREL. Specs: 735765 polys, 763618 verts.
MAX (Autodesk 3ds Max, filesize: 138 MB), OBJ (OBJ, filesize: 19.4 MB), FBX (Autodesk FBX, filesize: 132 MB), MAX (Autodesk 3ds Max, filesize: 138 MB), STL (Stereolithography, filesize: 45.5 MB), TEXTURES (Textures, filesize: 1.01 MB)