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Replacement W/D Head and Dual Cam for Reese # RP66074 Strait-Line Weight Distribution System


Hello eTrailer team! This will be my first purchase from you. I just upgraded my tow vehicle to a 2015 Ford F-350 Super Duty. It has the V-5 trailer hitch with the 2.5inch receiver. Although Ford provides an adapter sleeve to work with 2inch shanks, Id prefer the peace of mind of using the proper shank. It looks like part RP54977 is a good match for my setup. Your videos, particularly the fit demo on your 2013 Ford F-250 are very helpful. The center of the hitch pin hole to the face of the receiver is ~2, and would appear to fit properly with the ridge on the shank. It is ~5inch from the center of the hitch pin hole to the rear of the receiver tube. That too, appears to be good. I currently have a Reese RP66074, and it has served me well. Ive towed about 7500 miles with it, and it is showing wear in the sockets that hold the WD bars, and on the cams. I have plans for some major travel this year, and am concerned that the hitch may fail or become less effective over several thousand more miles. So, I have some questions: 1 My current hitch package is at least 5 years old, and I understand the somewhere along the way Reese made revisions to the hitch head. Id prefer to receive the latest revision of the product. 2 Based on what you know, and what Ive shared, am I thinking clearly on this? What would advise if there are other considerations? 3 Do you recommend replacing the ball at this time? Thank you in advance!


Helpful Expert Reply:

The shank you referenced, part # RP54977 would be a good choice for you, as long as it provides sufficient drop. We have an FAQ article that shows how to determine the rise or drop needed in a ball mount. The procedure is the same for a weight distribution shank.

The # RP58167 would be the correct replacement weight distribution head for the # RP66074 Strait-Line Weight Distribution system you have. Be sure to lubricate the head/trunnions as mentioned in the instructions that I've linked for you.

If the cams are worn, part # RP26002 would provide a new set.

If the trailer ball isn't appreciably worn, there's no need to replace it.

As soon as you realize parts of your system are worn and in need of replacement, I'd highly recommend doing so. Weight distribution systems are under quite a bit of tension from the spring bars. You wouldn't want anything to come loose or break as you're driving down the road.

helpful expert reply by:
Mike L

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