BDS 6" 4 Link Problems - Ford Powerstroke Diesel Forum
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post #1 of 21 Old 06-19-2013, 07:16 PM Thread Starter
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BDS 6" 4 Link Problems

I need your help. I just installed a BDS 6" 4 link with fox shocks and dual stabilizer. I had a BDS 4" drop bracket kit with no stabilizer and regular shocks, and it drove as good as stock. Now my truck drives and rides like crap. It throws me around left and right, which
I'm assuming is because of the 4 link. I was thinking about a dual shock kit, or just some better shocks that will keep this thing from throwing me around. I don't mind to bounce up and down, but left and right I cannot tolerate. Next, it likes to wonder around. I was shocked that it seems like the dual stabilizer kit with 9500s did nothing. My truck was already starting this before with the 4" lift so I just assumed that the factory stabilizer needed replaced also. Maybe it needs a better sway bar, I don't know. I've already got $4600 in this kit with install, I expected much better. The 4" kit was way better but did not clear my new 37s very well.

The main thing I want, is for this thing to stop flopping like a damn fish, and drive like the nice 4" kit did.

2011 F250 6.7 4x4 CC Lariat

6" 4-link BDS
22" Fuel Hostage
37" Toyo MT
H&S BLACK MAXX,
5" MBRP straight pipe
AMP Steps
Truck pics ---->http://www.powerstroke.org/forum/6-7...o-37-m-ts.html
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post #2 of 21 Old 06-19-2013, 09:37 PM
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Try going back a degree or two in the negative caster direction. I was having some death wobble issues and moving it back negative some tightened that up. Now I have fabtech radius arms but the same physics apply.
Now if you have any play in your drag link you are going to feel it more with a 4 link setup. The radius arms give some side to side control but 4 link gives none whatsoever.
You are going to need to tune it in, the 4 link will give the best ride results once it's dialed in. Be patient you may need to bring it to a shop that has experience with them if you can't get it where you like it.


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post #3 of 21 Old 06-19-2013, 09:45 PM
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throwing you around is interesting ?

I just threw a Rize 4 link on mine to dump the radius arms and drop brackets and had no negative side effects

I know some 4 links can give a sway feel not sure if BDS was one of them ?


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Last edited by ZMANN; 06-19-2013 at 09:48 PM.
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post #4 of 21 Old 06-20-2013, 06:13 AM
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Are you sure everything is tight ? Look at the drop down drag link bracket and everything with a bolt. lol
Being it's a 2011 I wouldn't think you would have worn ball joints or much of anything, but never say never.
Are your links adjustable or do they look like pic above?
Have you had it aligned ? Correctly ??


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post #5 of 21 Old 06-21-2013, 07:53 AM Thread Starter
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Just had everything tightened up. That should help. I had 4000 miles on it before it was re torqued, and I have not drove it yet. Fingers crossed.

As for the wondering around, is there a way I can add some caster? The 4 link is non adjustable from what I can tell.

As far as throwing me around, I'm positive its just because the front axle articulates so much better, which is great for off road, but when I'm on road and the pavement is not level, it feel very weird. Like the axle is flexing. I was hoping some heavier valved shocks would slow it down. I'm still learning about truck suspension.

2011 F250 6.7 4x4 CC Lariat

6" 4-link BDS
22" Fuel Hostage
37" Toyo MT
H&S BLACK MAXX,
5" MBRP straight pipe
AMP Steps
Truck pics ---->http://www.powerstroke.org/forum/6-7...o-37-m-ts.html
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post #6 of 21 Old 06-21-2013, 08:37 AM
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You will get more body roll with a 4-link but the truck shouldn't be having a mind of it's own.

What is the caster reading on your truck after you got an alignment?



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post #7 of 21 Old 06-21-2013, 09:24 AM Thread Starter
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I have lost the print out. I may want to go back and have it checked again.

2011 F250 6.7 4x4 CC Lariat

6" 4-link BDS
22" Fuel Hostage
37" Toyo MT
H&S BLACK MAXX,
5" MBRP straight pipe
AMP Steps
Truck pics ---->http://www.powerstroke.org/forum/6-7...o-37-m-ts.html
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post #8 of 21 Old 06-24-2013, 05:02 AM Thread Starter
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After driving it some more, I'm thinking the caster is off. What should I be at?

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2011 F250 6.7 4x4 CC Lariat

6" 4-link BDS
22" Fuel Hostage
37" Toyo MT
H&S BLACK MAXX,
5" MBRP straight pipe
AMP Steps
Truck pics ---->http://www.powerstroke.org/forum/6-7...o-37-m-ts.html
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post #9 of 21 Old 06-24-2013, 11:31 AM
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post #10 of 21 Old 06-24-2013, 12:01 PM Thread Starter
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Thank you I'm taking it in soon!

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2011 F250 6.7 4x4 CC Lariat

6" 4-link BDS
22" Fuel Hostage
37" Toyo MT
H&S BLACK MAXX,
5" MBRP straight pipe
AMP Steps
Truck pics ---->http://www.powerstroke.org/forum/6-7...o-37-m-ts.html
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