Need help with rear "bounce" problem please

[Mhatlen]

That is some nice looking work. You should build those, or get together with someone on here and build those as a kit. You would sell TONS of those if you truly cured the freakin Hop.

I know I'd buy one,
Which by the way is a CCLB 4x4 with factory goose neck/ fifth wheel hitch. As did my 2011 that hopped, My 2008 also hopped. The 2001 would on concrete HWY at 70 mph, but not much at lower speeds.

If there is someone that has the SuperDuty bounce that is near me I will fabricate them a exact copy of what I put on both of my trucks.
I won't charge them anything, I will do it to prove to myself that it will stop the frame bounce in all the trucks and not just on mine. It will take a full day to measure and fabricate it all up. There are differences in the trucks from year to year so I want the truck in my shop.
BTW there is only one hole that needs to be drilled installing this and it is on the transmission crossmember under the front driveline. Everything else lines up with existing holes in the frame and crossmember.

So if there are any Guinea Pigs in the Sacramento area let me know

 

[gnxtc2]

Could you email me the pics of the brace you made and how it's installed on the truck. The pics show up as thumbnail.

Billy T.
[email protected]

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[Mhatlen]

Sure, I can do that. There are some pretty good pictures on PowerStroke.org of the one between the hangers.
My Theory of the SuperDuty Hop and possible fix. Something like that. Pictures are on page 6.

But I will snap some for you today when I get home from work.
Mark....

 

[lincolnlocker]

Sure, I can do that. There are some pretty good pictures on PowerStroke.org of the one between the hangers.
My Theory of the SuperDuty Hop and possible fix. Something like that. Pictures are on page 6.

But I will snap some for you today when I get home from work.
Mark....

you can post links here with the sole purpose to help out another member if that would be easier? mods allow it as long as it isnt taking away from this site or a vendor.

live life full throttle

god bless america and the farmer who feeds your fat ass

 

[Mhatlen]

you can post links here with the sole purpose to help out another member if that would be easier? mods allow it as long as it isnt taking away from this site or a vendor.

live life full throttle

god bless america and the farmer who feeds your fat ass

I'm terrible with the computer, I really am. I can't figure out how to even put up a photo without using the paper clip thing. The pictures are small on thumbnails and not easy to see at all. Some of the forums make them full sized that way but not common. Not sure if it's a setting on this iPad or what ?!?

I will try getting onto my pc and see if I have better success on that.

But I would love to put one of these setups on a truck that's making someone crazy. Because that's a person that knows what these trucks do...... My 2006 F250 had it bad......really bad and it drove me nuts. But it's also what drove me to take the time to work through it and find the solution.
There are tons of these trucks rolling down the highway, and someone local or willing to take a drive will be one happy camper to drive back home with a solid smooth rolling truck......

 

[lincolnlocker]

I'm terrible with the computer, I really am. I can't figure out how to even put up a photo without using the paper clip thing. The pictures are small on thumbnails and not easy to see at all. Some of the forums make them full sized that way but not common. Not sure if it's a setting on this iPad or what ?!?

I will try getting onto my pc and see if I have better success on that.

But I would love to put one of these setups on a truck that's making someone crazy. Because that's a person that knows what these trucks do...... My 2006 F250 had it bad......really bad and it drove me nuts. But it's also what drove me to take the time to work through it and find the solution.
There are tons of these trucks rolling down the highway, and someone local or willing to take a drive will be one happy camper to drive back home with a solid smooth rolling truck......

you are in cali right?

live life full throttle

god bless america and the farmer who feeds your fat ass

 

[Sterling6.7]

Some have tied it together from behind the hangers but it's not my preferred spot because there is only one bolt per side and it can still 'rack' so to speak.

I understand now that you say this. I am working on a plan to either trash my front crossbar or just add to it so that I can capture the radius arm pivot bolts.

 

[Mhatlen]

Yes sir. Dead smack in the middle of it. 20 miles south of Sacramento.

 

[Mhatlen]

I honestly would start over with a new one. You want to make a pattern of the inside of the radius arm hangers. Where you can use the pivot bolt along with the hole for the 2 wheel drive mounting hole. This way you have two 3/4" sized fasteners to hold the 3/8" plates on.
Then a piece of 3" channel goes between the radius arm hangers. Welding it in just above the pivot nut and at the same angle as front driveshaft.
This completely locks both of them together. It is extremely rigid and locks them into that spot. But that alone will NOT stop the frame from bouncing.
It only locks the radius arm hangers left to right. They need to be trussed back into the frame from behind them. Best way to accomplish this is hopping back to transmission crossmember and then from there back to the frame rails. The strongest way to do that is diagonally along with a cross brace on those arms to keep them honest and where they belong.

 

[Mhatlen]

I just got home, so after a shower I will pull my truck into my shop and take some closeup pictures. Lol

 

[Mhatlen]

I understand now that you say this. I am working on a plan to either trash my front crossbar or just add to it so that I can capture the radius arm pivot bolts.

Very nice picture Sterling. The problem you are going to see with that is its limited to single bolt connections. Looks like 3/8 or 1/2" bolts at that and if the holes for the bolts are oversized at all it's going to rack around. There is a ton of pressure on everything here and anything that can move.....will. That pipe needs to be sch.80 at least to give you the strength your looking for IMO.

You are going to want something that controls left-right and up-down control.

That said you are on the right path. Did you notice any change in the steering from that alone??

 

[Jomax]

My 15 dually w/ factory installed 5h wheel plate does this !Mostly on cement freeways at speed . Blacktop freeways smooth as silk !

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You will get that no matter what with the expansion joints.... That's a straight axle truck for you..... Even Chevys do it... This thread is about people having it happen on the black top freeways smooth as silk.


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[Jomax]

I just got home, so after a shower I will pull my truck into my shop and take some closeup pictures. Lol

Do you have any blueprints of the brace? I don't have this issue with my truck. But making the frame stiffer is never a bad thing.


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[BIG JUICE]

Soooo, I spent 3 hours reading the posts here and on .org.

Is the fix tying the radius mounts together?

I have traction bars on my OBS and they make a world of difference. Need to get a set for the 2016.

On my OBS, the trans crossmember and the crossmember by the front fuel tank have brackets that tie the frame rail flanges together. The fuel tank crossmember is riveted and the trans is nut/bolted. I'll take some pics of the cross members when I get back.

Billy T.
[email protected]

me too, WONDERING whether I should try this still? Seems like if this was as easy as bolt in bracing and couple holes, you could sell the crap out these(MIKE?)

 

[BIG JUICE]

got money and no time to fab right now. I will try to build one in next couple weeks and update also. What thickness steel should I be you using you guys think? thickest available?

 

[Mhatlen]

photobucket

Here is the black print on radius arm stiffener for 2005-2007 trucks. Not sure about if it fits 2008-2010. I know 2011 has a redesigned hanger. Not a big difference but they are different.

<a href="http://s1202.photobucket.com/user/markymark34/media/image_13.jpeg.html" target="_blank"><img src="http://i1202.photobucket.com/albums/bb367/markymark34/image_13.jpeg" border="0" alt=" photo image_13.jpeg"/></a>

 

[Mhatlen]

Ok I need to figure out how to load pics. Tomorrow is going to have to be the day. 5:00 am comes around pretty fast.............Sorry about that I did try. Lol

 

[Jomax]

Ok I need to figure out how to load pics. Tomorrow is going to have to be the day. 5:00 am comes around pretty fast.............Sorry about that I did try. Lol

Can you email me that pic? Shows up blurry

[email protected]

thanks!


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[Mhatlen]

Can you email me that pic? Shows up blurry

[email protected]

thanks!


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I sent you email with pictures of what I made for my truck. Your 2015 has different hangers then 2006. Yours are welded together on the back of the hangers. Would need to cut reliefs so the plates sit flat. I would also stack a plate in that area just to get that area locked into the flanges. ' larger area makes a better connection '

Mark....

 

[gnxtc2]

Pic of Mark's truck

Billy T.
[email protected]