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Old 06-22-2014, 10:49 AM   #1
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Rockwood 8280WS light 5er and Ram 2500 4x4

We really like the Rockwood 8280WS light 5th wheel. Once concern I have is the height of our truck bed. On level ground the bed height is 58 in from ground to top of bed rail. Any members have this model 5th wheel and can comment on the hitch height? I have a 2014 Ram 2500 CCSB 4x4. Thank you.
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Old 06-22-2014, 11:36 AM   #2
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We have the 8280. Are you asking for the pin height from the ground on the RV, or are you asking about the height of the hitch in the bed of the truck?

By the way, we too are big fans of the 8280. Love the floor plan.
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Old 06-22-2014, 11:42 AM   #3
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Originally Posted by ronb707 View Post
We have the 8280. Are you asking for the pin height from the ground on the RV, or are you asking about the height of the hitch in the bed of the truck?

By the way, we too are big fans of the 8280. Love the floor plan.
Sorry...newbie here. I am trying to figure out if I will have an issue with the height of the bottom of the 5th wheel to the top of of my bed rail. I do not have a 5th wheel hitch yet. I thought I read somewhere that the bottom of the 5th wheel bedroom overhang is 59 inches when on level ground. Just trying to figure out if I will end up having 6 inches of clearance from the bottom of the RV to the top of my bed rail when I hook up. There are no local units I can check out. Thanks.
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Old 06-22-2014, 03:07 PM   #4
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For what it's worth, ground to top of my bed is 55 3/4" (actually 55" but I added a cover over the bed and the rail for it sticks up that last 3/4"). Can't recall exactly my measurement between bed rail and underside of RV but it is about 5 1/2 inches. When towing on the level I imagine the nose of my RV is slightly up. Never confirmed this, but will do next time I have a chance. From what I read, 6" is about the least you want to tow with between bed rail and bottom of RV.

Prior to getting my unit I went to the dealer. I measured his 8280. The ground was level and the RV appeared to be level as well (didn't bring my own level to verify that). His measured 62 1/2" from underside of overhang to the ground.

I can't get a good measurement off my unit for you because even though the trailer sets level in all directions, it is on a slight incline from front to back. That would throw any measurement I made off as it would be shorter than if on level ground.

I believe most/all 5th wheel hitches have a vertical up/down adjustment to put a safe distance between bed rail and RV. However, this will raise the nose of the RV. It seems like the newer trucks with the higher bed rails is creating a challenge to those trying to tow a 5th wheel level.

As far as being a Newbie welcome to the club! I have only been RVing for about a year.
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Old 06-23-2014, 05:18 PM   #5
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I have an 8280WS and 2014 Ram 2500 crew cab SLT. I hooked up the first time and the front was too high. So I dropped the hitch one hole down rides about 80% level and is about 5 1/2 inch rails to under 5 ver.. I wish I could lift up the trailer an inch higher but cost is crazy. Drove 6 hours from Ottawa to Utica and 6 back. No issues. May wear down back tires over time but not quick so not worried. I also have 20 inch tires so if I ever go down to 18's I would be more level. I think
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Old 06-24-2014, 04:57 PM   #6
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I have a 2010 8280WS and tow with a 2013 F350 shortbed crewcab 4wd. The spec on the rail height is 58 -60 inches. The best I can do with adjusting the hitch and the pin box to achieve 6 inches clearance, the trailer is still about 3" out of level. You may do a little better with the 3/4 ton truck, as you may get a little more sag under load. I've fretted about it a lot, and determined that when loaded for travel, there is about 600 lb more weight on the rear axle than the front. I don't know how much of that is due to the out of level vs. just the rear kitchen model. The good news is that both axles are under the axle spec and well below the tire spec. I also monitor the tire pressure with a TPMS and the temperature with a hand held infared thermometer and have seen no significant difference in temperature or pressure front to rear. All temps running around 105 to 114 at 90 ambient. Actually there was more difference sunny side to shady side than front to rear. I don't think tire wear will be a factor either. I've been towing 7 or 8 thousand miles a year for 2 years, and see no noticeable tire wear. I'll change the tires next year just because of age, and will go up to D rating just for safety margin. All that being said, there was a post a couple of weeks or so ago from a guy who got a bolt on lift kit for the 8280WS from Rockwood for about $150. I'm still thinking about getting it just for aesthetics! However, installation is not something I would take on, so total cost would be at best several hundred dollars.
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Old 06-24-2014, 09:02 PM   #7
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Found a link to owner lifting a 8289 with a 3" lift kit supplied by Dexter/ Rockwood:

Lift kit install on 8289WS



Good link within that thread with pics of what it looks like and how to do it:

http://dexteraxle.com/i/u/6149609/f/...x_Lift_Kit.pdf


Installing it on 8280 should be the same, because they are the same axles and mounts (at least look similar to my 8280). You may not want to think about having to modify or work on a new RV already but it at least gives you the option later on. Try it stock for a while and see what you think.
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Old 06-25-2014, 05:45 AM   #8
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Unless they have changed, the 8280WS has Alko axles, not Dexter.
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Old 06-25-2014, 08:42 AM   #9
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Unless they have changed, the 8280WS has Alko axles, not Dexter.
I received a complete Dexter Axle manual with my new 8280 and have the EZ lube bearings. That's why I feel I have the Dexter axle. According to the manual, each axle since 2001 will have the serial # and the name DEXTER on the rear side of the axle beam.
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Old 06-25-2014, 04:29 PM   #10
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I have a 2014 ram hd with the same trainer. Got the dexter 3 inch lift kit. Works great. Have about 6 inches of clearance on bed rails, I need to lower my hitch a hole I think. Almost level tho with out lowering hitch. Have pulled the trailer about 1600 miles with this set up. I did not engage the revolution hitch. Have had no problems.


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