Comparing Lock N Roll Hitches Drop and Rise  

Question:

Expert Reply:

The Lock N Roll # 336VS517 has a rise or drop of 4 1/2", and the Lock N Roll # # 336VS503505 has a rise or drop of 4 1/4".

The main difference between the 2 Lock N Roll hitches # 336VS503505 and # 336VS517 is that the # 336VS503505 is adjustable. There's 3 different positions it can be mounted in the channel. The holes are spaced 2" apart, so 4 1/4" is the lowest and highest setting, about 2" for the middle position, no drop or rise at the third position.

The # 336VS517 is not adjustable and has a maximum drop or rise of 4 1/2" with no adjustments.

To find the appropriate rise or drop for a ball mount, park you trailer on flat level ground and level the trailer. Measure from the ground to the bottom of the coupler. Then park your tow vehicle on level ground and measure from the ground to the top of the receiver tube. The difference between the two measurements is the rise or drop you need. If the trailer is higher then you need a rise, if the trailer is lower than you need a drop mount.

I linked the hitches mentioned above, as well as a help article that has a ton of useful ball mount information.

expert reply by: Robert C

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