Frame assembly for a vehicle

1. A chassis for a vehicle, the chassis comprising:

a frame having a first end and an opposing second end, the frame including:

a first frame rail defining a first channel;

a second frame rail defining a second channel, the second frame rail spaced from the first frame rail;

a reinforcement assembly including at least one longitudinal reinforcement member and a plurality of plates coupled to the at least one longitudinal reinforcement member, the plurality of plates coupled to an exterior surface of the first frame rail along a length of the first frame rail, the at least one longitudinal reinforcement member extending below the first frame rail; and

a cross member assembly coupled to the first end of the frame and extending between the first frame rail and the second frame rail, the cross member assembly including:

a first end plate positioned within and releasably received by the first channel of the first frame rail;

a second end plate positioned within and releasably received by the second channel of the second frame rail; and

a cross member including (a) a front plate extending between the first end plate and the second end plate and (b) an upper plate extending from the front plate at an angle, the upper plate including (i) a first flange that engages with and extends along a first upper edge of the first end plate and (ii) a second flange that engages with and extends along a second upper edge of the second end plate.

2. The chassis of claim 1 , wherein the first end plate defines a first tow eye and the second end plate defines a second tow eye.

3. The chassis of claim 1 , wherein the first end plate defines a first tie down and the second end plate defines a second tie down.

4. The chassis of claim 1 , wherein the first end plate defines a first plurality of apertures positioned to facilitate releasably coupling the first end plate to the first frame rail with a first plurality of fasteners, and wherein the second end plate defines a second plurality of apertures positioned to facilitate releasably coupling the second end plate to the second frame rail with a second plurality of fasteners.

5. The chassis of claim 1 , further comprising:

a first support bracket extending at an angle between the first frame rail and the cross member; and

a second support bracket extending at an angle between the first frame rail and the cross member.

6. The chassis of claim 1 , wherein the cross member assembly is a first cross member assembly, further comprising a second cross member assembly coupled to the opposing second end of the frame and extending between the first frame rail and the second frame rail.

7. The chassis of claim 6 , wherein the second cross member assembly has a different structure than the first cross member assembly.

8. The chassis of claim 6 , wherein the second cross member assembly includes:

a third end plate positioned within and releasably received by the first channel of the first frame rail;

a fourth end plate positioned within and releasably received by the second channel of the second frame rail; and

a second cross member extending between the third end plate and the fourth end plate.

9. The chassis of claim 1 , wherein the first frame rail and the second frame rail are a first set of frame rails having a first length, and wherein the first set of frame rails is interchangeable with a second set of frame rails having a second length different than the first length.

10. The chassis of claim 9 , further comprising:

a first lift structure coupled to the frame proximate the first end of the frame; and

a second lift structure coupled to the frame rearward of the first lift structure;

wherein a position of the second lift structure is variable based on a length of the frame; and

wherein the first lift structure is positioned in a consistent location relative to the first end of the frame regardless of the length of the frame.

11. The chassis of claim 1 , further comprising a frame liner coupled to an interior surface of the first frame rail and the second frame rail.

12. The chassis of claim 11 , wherein a position of the frame liner is variable.

13. The chassis of claim 11 , wherein the frame liner is a first frame liner having a third length, and wherein the first frame liner is interchangeable with a second frame liner having a fourth length different than the third length.

14. A chassis for a vehicle, the chassis comprising:

a frame having a first end and an opposing second end, the frame including:

a first frame rail;

a second frame rail spaced from the first frame rail;

a reinforcement assembly including at least one longitudinal reinforcement member and a plurality of plates coupled to the at least one longitudinal reinforcement member, the plurality of plates coupled to an exterior surface of the first frame rail along a length of the first frame rail, the at least one longitudinal reinforcement member extending below the first frame rail;

a first cross member coupled to the first end of the frame and extending between the first frame rail and the second frame rail;

a first support bracket extending at an angle between the first frame rail and the first cross member, the first support bracket releasbly coupled to the first frame rail and the first cross member;

a second support bracket extending at an angle between the second frame rail and the first cross member, the second support bracket releasbly coupled to the second frame rail and the first cross member; and

a second cross member coupled to the opposing second end of the frame and extending between the first frame rail and the second frame rail;

wherein at least one of the first cross member is releasably coupled to the first end of the frame or the second cross member is releasably coupled to the opposing second end of the frame.

15. The chassis of claim 14 , wherein the frame includes:

a first plate coupled to a first lateral end of the first cross member, the first plate releasably coupled to the first frame rail; and

a second plate coupled to an opposing second lateral end of the first cross member, the second plate releasably coupled to the second frame rail.

16. The chassis of claim 15 , wherein the first frame rail defines a first channel, wherein the second frame rail defines a second channel, wherein the first plate is positioned within the first channel of the first frame rail, and wherein the second plate is positioned within the second channel of the second frame rail.

17. The chassis of claim 15 , wherein the first cross member has (i) a first flange positioned to interface with and that is coupled to the first plate and (ii) a second flange positioned to interface with and that is coupled to the second plate.

18. The chassis of claim 14 , further comprising at least one of:

a frame liner coupled to an interior surface of the first frame rail and the second frame rail, wherein at least one of a position or a length of the frame liner is variable; or

a first lift structure coupled to the frame proximate the first end of the frame and a second lift structure coupled to the frame rearward of the first lift structure, wherein a position of the second lift structure is variable.

19. A vehicle comprising:

a chassis having a first end and an opposing second end, the chassis including:

a first frame rail;

a second frame rail spaced from the first frame rail;

a first cross member coupled to the first end of the frame and extending between the first frame rail and the second frame rail;

a second cross member coupled to the opposing second end of the frame and extending between the first frame rail and the second frame rail, wherein at least one of the first cross member is releasably coupled to the first end of the frame or the second cross member is releasably coupled to the opposing second end of the frame; and

a reinforcement assembly including at least one longitudinal reinforcement member and a plurality of plates coupled to the at least one longitudinal reinforcement member, the plurality of plates coupled to an exterior surface of the first frame rail along a length of the first frame rail, the at least one longitudinal reinforcement member extending below the first frame rail;

a rear axle assembly coupled to the chassis;

a front axle assembly coupled to the chassis;

a cab coupled to the chassis; and

an engine configured to drive at least one of the front axle assembly or the rear axle assembly.