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Old 04-14-2014, 10:01 PM   #1
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Motorhome receiver height

We bought a (2011) Fleetwood Storm 32bh last October to replace our class C. Right now I am getting it ready for our first trip (next month).

We just got an eze-tow dolly for DW’s Volkswagen beetle that we want to bring along. It is the only car we have that we can tow. Our other cars are either all-wheel drive or rear wheel drive. Neither of them are towable according to the manufacturer.

The problem I have is with deciding how much of a drop I need from the receiver on the MH to the dolly.
Because of the surge brakes, the dolly needs to be almost perfectly level, at 14” according to the manufacturer.
The bottom of the hitch receiver on the MH is 17 ¾” from the ground.

My question is:
How exact do I have to be with the coupler height in order for the surge brakes to work properly.

How much do I allow for the height difference of the MH with empty/full tanks, the weight of the dolly + car, etc..

I thought of getting a 2 1/2 “ drop, assuming the MH will be 1-1 ½” lower when fully loaded, but I am just guessing…. Is there a way to find out what I need before buying the wrong part?

Appreciate your suggestions.
William
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Old 04-15-2014, 07:13 AM   #2
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I have seen drop hitches of 1, 2, 3 and 4 inch. Never 2 1/2 inch. Most tow guides I have read suggest +- 4 inches (approx.) I would find it hard to believe the brake has to be closer than 1 or 2 inches from level.

I would choose something like a 3 inch drop hitch.

If the MH drops that much when loaded, then it is probably being overloaded. I would not expect that much drop when loaded. You can also balance the load front to back to minimize and loaded drop while being careful to not overload either axle.
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Old 04-15-2014, 07:46 AM   #3
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You need a 4" drop.
Measure from the center of the receiver.
18 1/2" - 14" = 4 1/2" a 4" drop will be close enough.

4" if you think the rear springs are weak and the weight of the car on the dolly will drop the rear of the MH another 1/2"
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Old 04-15-2014, 08:25 AM   #4
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I've seen one instruction in measuring proper ball mount and it says:

1. Measure from the ground to the top of the hitch.(A)

2. Measure from the ground to the (inside) top of the trailer coupler, when level.

3. Subtract the height of the hitch ball (most are 2-1/2" - 3" high) from coupler
measurement. (B)

5. Subtract A to B and that's the amount of drop is needed to make the trailer level.

Hope this help. Good luck and have fun RVing
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Old 04-15-2014, 10:18 PM   #5
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Thanks for the advice... I appreciate it.
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Old 04-15-2014, 10:32 PM   #6
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The STICKY at the top of this section will give you a lot of good info.
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