hydraulic suspension with tires rusty version rigg Low-poly Modelo 3D

here is the old and rusty design of my hydraulic suspension module with pbr texture-set and standard tires.

3d and animation preview on sketchfab:

----------------
--hydraulic-----
--suspension----

polygons: 8110
vertices: 4194
triangles: 8110

12 available formates:
- fbx (7.4 binary and 6.1 ascii)
- obj and mtl
- dae
- blend (2.78a)
- stl
- abc (alembic)
- ply
- x3d
- x
- dxf
- wrl
- 3ds

pbr textures:
- normal map
- color map
- metalness map
- roughness map
- ******t occlusion map
- curvature map
- all textures in 4096 x 4096 px resolution
----------------

----------------
------tire------
polygons: 2950
vertices: 1700
triangles: 3200

12 available formates:
- fbx (7.4 binary and 6.1 ascii)
- obj and mtl
- dae
- blend (2.78a)
- stl
- abc (alembic)
- ply
- x3d
- x
- dxf
- wrl
- 3ds

pbr textures:
- normal map
- color map
- metalness map
- roughness map
- ******t occlusion map
- curvature map
- all textures in 2048 x 2048 px resolution
----------------

rig and animation in blender 2.78a:


animation test in unreal 4:


animation test in unity 5:


i created the model,the rig and the animations in blender 2.78a for texturing i used 3d-coat.
and i checked the animation in unreal 4 and unity 5.