Are there stabilizers in the back of 1972 Shasta Compact?

For stabilizer jacks I went to a car junkyard and got some screw jacks out of cars that were originally meant for jacking the car up when you got a flat tire.

If you have only one axle and you put more weight on the back of the trailer then the weight of the tongue then the front of the trailer will come off of the ground. If you don't have the wheels chocked (blocked) the trailer will begin to roll down the hill,,, toward the lake.

Don't ask me how I know this.