Replacement Weight Distribution Head for 18 Year-Old Reese Trunnion Spring Bars
Updated 07/25/2014 | Published 07/23/2014
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Question:
Hi, I have what I think is an old Reese Weight distribution hitch. 18 yrs old not used much. Spring bars say 1000 lb on the trunnion, no model # . My ball head is cracked. My question is will my existing spring bar/trunnions fit into your Reese RP58167 ball head ? I noticed in the picture it does not have that little lever you lift up to install the trunnion head Is this no longer required ? Please help I am supposed to go away in 2 weeks Thanks.
asked by: Anthony P
Expert Reply:
The weight distribution heads and the trunnions on the spring bars have gone through several evolutionary changes over the years, so the # RP58167 almost certainly wouldn't be compatible with spring bars that are 18 years old. However, I can get try to get some confirmation or attempt to find something compatible if you could provide the part numbers from your existing spring bars.
If you can't find any numbers on your bars, honestly your best course of action would be to go with a new set-up. To choose a weight distribution system, you'll need to first determine the fully loaded and ready to tow tongue weight of your trailer. To that figure, add the weight of any gear stowed in the cargo area of the SUV or truck bed behind the rear axle. I've linked to an FAQ article that explains how to do this. These combined figures comprise the Total Tongue Weight (TTW) of your set-up. The TTW of your trailer should fall as close as possible to the middle of the effective range of the weight distribution system you choose.
For instance if your TTW is 900 lbs, a system rated for trailers with tongue weights ranging from 600 to 1200 lbs would be perfect. If you don't need sway control, a simple trunnion system like part # RP66542 would be a good choice. For a moderate amount of trailer sway, a Reese SC system like # RP66560 would work well. For moderate to severe sway, the Reese Strait-Line system like part # RP66084 which literally forces the trailer to stay directly in line behind the tow vehicle would be the way to go. I based these recommendations on the capacity of the spring bars you currently have. If your TTW is above 1200 or below 600 lbs, let me know and I can make a different recommendation.
The three systems I mentioned above include the weight distributing shank, but the # A-90 2 inch or # 19286 2-5/16 inch trailer ball is sold separately.
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