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Old 09-12-2016, 07:44 AM   #15
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Quote:
Originally Posted by jtbuilds View Post
Jayco has was using an independent frame builder but then Lippert bought the builder.
Now Jayco is own by THOR Industries, purchase was announced on 1 July 2016.
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Old 09-12-2016, 08:02 AM   #16
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Take some time to check the trailer. Look for gaps in construction. Check leveling in the freezer, on the floor, around the outside. Make sure slides work smoothly. Check for gaps around slide. Check how the floor looks. Look at wiring and see if it is neat or a mess. Check plumbing and see if pipes are straight and neat. Is it stable and level? Does it drive, turn and reverse well? You may not know how perfectly straight the frame is, but you can see how square and tightly built the trailer is. If things are crooked or have gaps, check another until you find a good build quality. Frame bend is then up to the user to cause or avoid. How you tow, lift and lower your trailer can have the most impact on your frame.
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Old 09-12-2016, 09:19 AM   #17
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I am not a mechanical engineer so am speculating.

One of the issues I believe is the trailer manufacturers tell the frame people what they want in a frame. I expect they will specify a length, width, GVWR, pin weight and frame rigidity. Probably there will be discussions about number of axles, bracing locations, etc.

The trailer manufacturer will then build the home and from the time of design to actual build who knows what changes will be made. And how the frame load will be distributed. Probably not much but I would guess that the original order for frames did not leave a lot of room for changes to the home.
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Old 09-12-2016, 10:37 AM   #18
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In this PDF attached you will find a method for verifying and adjusting your axle alignments. Its published by the maker's of the Joy Ride RV shock system. Their product Joy Rider 2 is a kit that includes the Joy Ride shocks and the axle alignment that they licensed to LCI as the Correct Track system.

Joy Rider 2 Plum Bob Tool Instructions

Sonny Bismuth's RV Improvement Systems sells the kits that when combined will replace the springs and provide alignment capability and lastly add shocks to smooth the ride. All the kits are available through Tweety's.

Joy Rider 2 Shock Kit (need 2) and

Liberty Rider Springs (need 1 kit)

If you buy everything from Tweety's, with shipping you're looking at about $1600. This was something I looked into after reading about it in the March 2016 Trailer Life. My trailer is new and I haven't made up my mind but I thought others my like to know where to find these. Sonny's phone is (574)370-4516 and he will answer any questions about specifics related to your particular model of trailer.
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Old 09-13-2016, 09:04 AM   #19
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It would be asking a bit much to have a new rig come out of the factory with the wheels aligned. Much less with shocks, disc brakes and modern sealed wheel bearing assemblies. It is the 21st century.
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Old 09-13-2016, 09:52 AM   #20
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It would be asking a bit much to have a new rig come out of the factory with the wheels aligned. Much less with shocks, disc brakes and modern sealed wheel bearing assemblies. It is the 21st century.
Tires are not normally balanced either. One economical way of reducing damage to the trailer. All of the tires on our 5er were out of balance, one significantly. After balancing the trailer felt easier to pull. But for sure inside stuff "walked" less.
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Old 09-15-2016, 02:37 PM   #21
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My 2008 KS Challenger 5vr experienced twisting of the bottom flange of the I-Beam frame causing the spring hangers to misalign and the I-Beam to bow above the axles. I recommend any I-Beam frame (as opposed to a boxed frame) should have additional support via gusseting the flange (or equivalent boxing/bracing) for at least 6 to 8 feet above the axles. The force applied to these frames when turning to get into a campground spot, a driveway or even city street turns is tremendous and requires extra support. I notice many high end 5vrs add a 2x4 steel boxed frame to the bottom of the I-Beam and they often add cross-members directly between the spring hangers and the equalizer hanger (similar to the MorRyde X-factor crossmembers). If my next 5vr doesn't come that way I plan to have it added ASAP.
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Old 09-15-2016, 06:51 PM   #22
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I would like to know how they stressrelieve the frames after all the welding done on them?
Northwood stress relieves their frames, I think they are about the only mfgr that still makes their own frames. They tried manufacturing in Virginia but due to some state "safety" cert regulations had to use certified Lippert frames which turned out to be a disaster for them, so they shut the VA plant down and only build in Oregon now. Northwood RVs aren't fancy, but they are built strong.
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Old 09-15-2016, 08:33 PM   #23
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Northwood stress relieves their frames, I think they are about the only mfgr that still makes their own frames. They tried manufacturing in Virginia but due to some state "safety" cert regulations had to use certified Lippert frames which turned out to be a disaster for them, so they shut the VA plant down and only build in Oregon now. Northwood RVs aren't fancy, but they are built strong.

Northwood Mfg is a division of Northwood Investment Corp (NIC)

I have ask about the stress relieved frames. NIC stitch welds the top of the I beam. As the weld cools the top of the I beam shrinks which makes the ends of the I beam curve up. Stress relieving would removed the curve.

Spacecraft Mfg. and New Horizons build frames.
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