To find the correct ball height for the Equal-i-zer Weight Distribution System # EQ37100ET you will be using to tow your 2018 Forest River Flagstaff Shamrock 233s Travel Trailer you will want to measure the frame rail height located between your tandem axles. This will allow you position the tongue of the trailer at the correct height to measure the ball height for the coupler without having to put a level on your camper. It is recommended to set the ball height level to 1" higher to compensate... view full answer...
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