This large, easy to read inclinometer (slope gauge) will tell you the angle of your truck. This gauge goes all the way to 50 degrees, unlike many others that only go to 30 degrees.
Range: +50 degrees to -50 degrees
Accuracy: 1 degree
Dimensions: 6-1/4" x 2-7/8"
Mounting: Multi-angle mount (included) will bolt or stick to most surfaces
Note: Adding this gauge will not change the rollover angle of your vehicle. Do not assume that you can safely tilt your vehicle to 50 degrees.
Consider getting 2 of these large, easy-to-read gauges: one for grade (up-and-down) and one for side-slope (side-to-side).