14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

M1078 chassis. M1083 chassis.

0

4

8

12

16

20

24

28

32

36

40

Setting

Recommendation

Change view


Select the M1078 for smaller RVs, and the M1083 for larger ones.


Relocate the spare tire and CTIS and add a passthrough door to the cab. Adds approximately two feet of living space.


M1078 max: 14'.

M1083 max: 16'.

Choosing values greater than these will modify the chassis in order to maintain approach and departure angles.

Useful for increasing headroom at the rear of the rig, typically over the bed. Can be used in conjunction with raising the bed for to increase under the bed storage space, up to an entire garage.


Place the door on the left or right side of the rig.

Place windows at the fore and aft of the rig.

Chassis color.

Box color.

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Build will automatically persist across sessions, unless reset here.