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Old 01-29-2009, 01:52 AM   #1
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We are new to the forum, thanks for having us; anyway our 5er a 29rk feels like it is pulling us backward[jerking/bucking] sometimes and I can't figure out what is causing this. Any ideas would be helpful.Oops forgot we're pulling with a 2008F150 rated to pull10,000lbs.
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Old 01-29-2009, 01:58 AM   #2
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It's called chucking and is not helped by a soft sprung F150. No offense but the suspension on most 1/2 tons is set for comfort not towing.



You can switch out the pinbox for a MorRyde or air-ride pin box, this can help alot with the chucking. You can also add air-bags to the rear of your truck to level the load and it can help reduce the bounce or chucking you are feeling in the cab.
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Old 01-29-2009, 02:13 AM   #3
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Thanks for the quick responce. A dealership told us the same thing , they also said a product that uses large hard rubber donuts mounted over the rear axle would work and not cost as much as the airbags. dDo you think adding a leaf spring to make it more like a F250 would help?
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Old 01-29-2009, 02:15 AM   #4
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I would say your suspension is to light for the unit. Try puting air bag in that will help, also the nylon ring over the king pin can sometimes help. On my unit I travel with a full tank of fresh water it makes a difference for me. But keep in mine that for every gallon of water you are adding 7 pounds of weight. My other question is what year is you unit?
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Old 01-29-2009, 02:21 AM   #5
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It's a 2007 29rk. I was told once to fool around with water in the tanks and raise or lower the tire pressures,haven't tried anything yet just wishing it was camping weather so we can try to smooth this thing out.
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Old 01-29-2009, 02:41 AM   #6
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Mike is right on 2 counts also if you don,t have equa-flex this helps but air bags over timmerins is the way to go. I have air bags by firestone and equa-flex, they made a world of difference. One more easy one, depending on when you are getting your chucking your electric brake controller my be adjusted to weak. Youmay never get rid of all of it but it can be made a lot better.

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Old 01-29-2009, 02:43 AM   #7
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Hay welcome to the forum and keep posting it's winter and we need reading material.
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Old 01-29-2009, 02:45 AM   #8
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If you don't want to spend the $$ on air-bags then the previous mentioned Timdren's will assist your ride comfort. However, as Chuck mentioned a EquaFlex suspension upgrade for the trailer or the MorRyde pinbox can help.



It's about $169 for Timbren's on EBay Motors and install in a half hour with little to no hassle. The MorRyde pinbox is $459 on EBay and again, basic handtools (you need a torque wrench) and a half hour and your done!
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Old 01-29-2009, 03:07 AM   #9
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I agree the Equa-Flex can help also It is an easy to do home project Edited by: fhenn
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Old 01-29-2009, 04:26 AM   #10
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I had a chucking problem too. I added Timbrens and a TrailAir pin box, they really smoothed out the ride while hooked up.
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