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Bump Steer help

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Old Oct 1, 2021 | 12:49 AM
  #1  
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Bump Steer help

So I recently finished with my Dana 60 swap on my 1997 F250 Extended Cab Long bed along with SKY RSK 4inch kit with New SD leaf springs V codes up front and B’s in the rear. Along with that is New Ball joints, new axle U-joints, new redhead gear box, Borgeson steering Shaft, new body mounts, wheel bearings, brakes all around and Carrick Custom HD steering (Drag link & Tie rod with ends) with double adjuster rod end tube adapters. Pretty much everything underneath is new. I have drop pitman arm on along with adjustable Panhard bar. The truck rides good but I’m still getting some bump steer and just wondering if anyone has encountered this or has some input on some things to check. I tried taking the panhard bar off and it makes it worse. The truck is aligned but I almost feel like I should bring it to a different shop just to double check. Eventually plan on putting steering stabilizer on but just trying to get it as right as possible before I do that. Truck is sitting in 35 inch mud terrains and stock rims… Any input is much appreciated!



 
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Old Oct 1, 2021 | 08:49 AM
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Very nice looking truck. Don't wait - put a steering stabilizer on it.
 
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Old Oct 1, 2021 | 10:58 AM
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I'd personally be looking for a drop pitman, to get the steering link between the Box and draglink closer to parallel. That will *tend* to reduce bump steer. Your angle there isn't as extreme as some I've seen, but it *could* be contributing to it.
 
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Old Oct 1, 2021 | 11:05 AM
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Originally Posted by jas88
Don't wait - put a steering stabilizer on it.
I disagree. That is a band aid solution to the problem. You shouldn’t need a steering stabilizer.
 
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Old Oct 1, 2021 | 11:14 AM
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mind you this is an old GMC truck but I wanted to point out your front leafs... are the installed right?This is a d44 too, but Its older and stuff. but did your ball joints come with grease seals and zerks at all? My truck may be worn in the front end but those springs are original HD 3/4 ton front springs on a well used truck

Is your truck properly fitted to its leaf springs? they look bent. in multiple spots.
 
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Old Oct 1, 2021 | 11:16 AM
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Originally Posted by My4Fordtrucks
I disagree. That is a band aid solution to the problem. You shouldn’t need a steering stabilizer.
although his type of tire and potential road conditions locally may contribute more to it. also i forgot to mention, make sure your steering box was adjusted to the appropiate settings, a weak return or possibly an overshoot might occur if it wasnt adjusted proper, Im sure the box has a procedure to follow since(new right?) rather than rebuilt
 
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Old Oct 1, 2021 | 01:57 PM
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Originally Posted by SFaulken
I'd personally be looking for a drop pitman, to get the steering link between the Box and draglink closer to parallel. That will *tend* to reduce bump steer. Your angle there isn't as extreme as some I've seen, but it *could* be contributing to it.
I have a 4 inch drop pitman arm already. I really shouldn’t need to go much more
 
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Old Oct 1, 2021 | 02:01 PM
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Originally Posted by AuroraGirl


mind you this is an old GMC truck but I wanted to point out your front leafs... are the installed right?This is a d44 too, but Its older and stuff. but did your ball joints come with grease seals and zerks at all? My truck may be worn in the front end but those springs are original HD 3/4 ton front springs on a well used truck

Is your truck properly fitted to its leaf springs? they look bent. in multiple spots.
No, my ball joints were non grease. This is an interesting angle to look at because I did think my leafs looked a little bent. They are brand new v code and B code springs. When talking to the spring guy they said it was ok for my truck. How do you decide what’s a properly fitted leaf spring for your truck?
 
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Old Oct 1, 2021 | 02:02 PM
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Originally Posted by AuroraGirl
although his type of tire and potential road conditions locally may contribute more to it. also i forgot to mention, make sure your steering box was adjusted to the appropiate settings, a weak return or possibly an overshoot might occur if it wasnt adjusted proper, Im sure the box has a procedure to follow since(new right?) rather than rebuilt
Brand new redhead steering box. The instructions didn’t say anything about any adjustments so I would assume it’s correct. Actually the instructions said NOT to adjust the box at all
 
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Old Oct 1, 2021 | 02:26 PM
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I disagree. That is a band aid solution to the problem. You shouldn’t need a steering stabilizer.
I might could agree with you if we were talking about a stock truck, but when you start putting lifts and bigger/heavier tires on a ~25 year old truck, all bets are off. Steering stabilizers are an inexpensive, EFFECTIVE way to deal with such issues IMO.
 
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Old Oct 1, 2021 | 02:36 PM
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I see this argument a lot with steering stabilizers being a “band aid” to a real problem. In some cases yes. People overlook worn out parts and think the stabilizer is a cure all. The fact I’m lifted and don’t have a high steer set up and all parts under the truck are new I think a steering stabilizer is a decent route if all else checks out. My panhard bar is a lot shorter than the drag link and unless I did a high steer set up, that’s how it’s gonna be even if I have a similar angle. Which I do according to a angle gage. Only 1 degree off from each other
 
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Old Oct 1, 2021 | 03:12 PM
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Have you heard of the "cure"? Its a poly spacer that eliminates the tie rod roll you may be experiencing.
 
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Old Oct 1, 2021 | 03:15 PM
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https://www.ruffstuffspecialties.com/R1768.html
It helped my truck tremendously.
 
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Old Oct 1, 2021 | 03:22 PM
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Originally Posted by humphrey169
Have you heard of the "cure"? Its a poly spacer that eliminates the tie rod roll you may be experiencing.
The steering set up I have from Carrick customs claims to have low misalignment dust boots on the tie rod ends that eliminate tie rod roll that causes dead spot. But I’m gonna check that out when I have a person to help move the steering wheel for me
 
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Old Oct 1, 2021 | 07:46 PM
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Steering stabilizers are not a band aid fix. I put one on both of my F150's and it made a significant difference with just 31s even after a complete front end rebuild. Most lifted F250s I see have one. Many newer trucks have factory ones.


 
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