Bump steer gone

jperry1290 · Jul 9, 2019

I ve been in the process of building a TRO Chevy front end. At first the steering was sloppy, but after adding a Wild Horses track bar riser the steering is solid and stays straight. I will add that I needed to use the adjustable track bar as the stock one would have been too short.

1strodeo · Jul 9, 2019

yeah can't get rid of my bump steer, been thinking about investing in the WH sway bars

jperry1290 · Jul 9, 2019

1strodeo said:
yeah can't get rid of my bump steer, been thinking about investing in the WH sway bars

I don’t think sway bars will help at all. Does your track bar and drag link run parallel?

1strodeo · Jul 9, 2019

Yeah pretty much, also have the WH 3-way adjustable draglink/tie-rod setup

jperry1290 · Jul 9, 2019

1strodeo said:
Yeah pretty much, also have the WH 3-way adjustable draglink/tie-rod setup

What steering box do you have? My old stock box was shot and had a lot of movement. I built a fresh 4x4x2 box and it was awesomely different. Are you joints tight? There are a lot of posts on here about bump steering.

ame · Jul 10, 2019

1strodeo said:
Yeah pretty much, also have the WH 3-way adjustable draglink/tie-rod setup

It looks like the draglink is much lower then the track bar, that can cause steering wheel feedback with chassis lean, went through it on another vehicle when trying to chase some weird steering feedback.

1strodeo · Jul 10, 2019

jperry1290 said:
What steering box do you have? My old stock box was shot and had a lot of movement. I built a fresh 4x4x2 box and it was awesomely different. Are you joints tight? There are a lot of posts on here about bump steering.

It is a 6-turn PS box I believe from a 75, I do believe it has too much play.

ame said:
It looks like the draglink is much lower then the track bar, that can cause steering wheel feedback with chassis lean, went through it on another vehicle when trying to chase some weird steering feedback.

If you are saying chassis lean as in the lean going around big curves, then yes the wheels want to ‘dig in’ or ‘bite’ and oversteer in the direction of the curve, if that makes sense. I’ll see if I can get a better pic of the front

jperry1290 · Jul 10, 2019

Rebuild the steering box or buy one. I did the 4x4x2 myself. It was very easy to do

ame · Jul 10, 2019

1strodeo said:
It is a 6-turn PS box I believe from a 75, I do believe it has too much play.

If you are saying chassis lean as in the lean going around big curves, then yes the wheels want to ‘dig in’ or ‘bite’ and oversteer in the direction of the curve, if that makes sense. I’ll see if I can get a better pic of the front

Gotcha, well definitely start with any worn parts but suspect you may have a geometry issue going on.

1strodeo · Jul 12, 2019

After consulting with Paul at WH it appears I do not have the correct tie rods for the spindles or the spindles are reamed out...will get pics later this afternoon of the spindle casting # and calipers etc with the wheel off for help with ID'ing the issue, thanks all.

And don't you mind those booger welds on the drop bracket, it was tight in there ok!??!?! ;D: Skiddy would be proud

Justafordguy · Jul 12, 2019

I think someone makes a tapered insert that should fix your problem with those steering knuckles. I can't remember who but maybe someone will know the vendor.

WILDHORSES · Jul 12, 2019

Justafordguy said:
I think someone makes a tapered insert that should fix your problem with those steering knuckles. I can't remember who but maybe someone will know the vendor.

Appears to be F150 or full size Bronco disc if so these will fix the issue provided parts are not jacked up from running it like the pics show. Add some new tie rod boots also.
https://www.wildhorses4x4.com/product/Tapered_Sleeves_for_F150_Knuckles/Custom_tie_rods

https://www.wildhorses4x4.com/product/Tie-Rod-Dust-Boot/Custom_tie_rods

Jim

Justafordguy · Jul 12, 2019

WILDHORSES said:
Appears to be F150 or full size Bronco disc if so these will fix the issue provided parts are not jacked up from running it like the pics show. Add some new tie rod boots also.
https://www.wildhorses4x4.com/product/Tapered_Sleeves_for_F150_Knuckles/Custom_tie_rods

https://www.wildhorses4x4.com/product/Tie-Rod-Dust-Boot/Custom_tie_rods

Jim

That's the ones, Thanks Jim.

DirtDonk · Jul 12, 2019

And regarding the bumpsteer 1strodeo, you still have not rotated your tie-rod up back into position to mimic the original. For now you are also dealing with a trackbar and draglink that are not as parallel as they could be with this setup, AND also more "tie-rod rotation" than you should be.

Loosen the three adjuster sleeves, grab the centerlink and rotate it "up" so that the Zerk fitting on the lower draglink end points up at a 60 degree angle (roughly up at the bottom of the radiator if it's still stock) and much of your other issue will disappear.

You still need the ends fitted of course, but doing all of the above will fine-tune your steering.

Paul

sprdv1 · Jul 13, 2019

1strodeo said:
After consulting with Paul at WH it appears I do not have the correct tie rods for the spindles or the spindles are reamed out...will get pics later this afternoon of the spindle casting # and calipers etc with the wheel off for help with ID'ing the issue, thanks all.

And don't you mind those booger welds on the drop bracket, it was tight in there ok!??!?! ;D: Skiddy would be proud

LOL, yes he would...

sprdv1 · Jul 13, 2019

Man w/the plan..

DirtDonk said:
And regarding the bumpsteer 1strodeo, you still have not rotated your tie-rod up back into position to mimic the original. For now you are also dealing with a trackbar and draglink that are not as parallel as they could be with this setup, AND also more "tie-rod rotation" than you should be.

Loosen the three adjuster sleeves, grab the centerlink and rotate it "up" so that the Zerk fitting on the lower draglink end points up at a 60 degree angle (roughly up at the bottom of the radiator if it's still stock) and much of your other issue will disappear.

1strodeo · Jul 13, 2019

DirtDonk said:
And regarding the bumpsteer 1strodeo, you still have not rotated your tie-rod up back into position to mimic the original. For now you are also dealing with a trackbar and draglink that are not as parallel as they could be with this setup, AND also more "tie-rod rotation" than you should be.

Paul

Thanks everyone, hey Paul yes I noticed the zerk facing forward after I posted that pic, as I had read your post in a similar thread in Tech the day before. I'll get on that for sure, and order some of those sleeves. Do you still want to see the part numbers and calipers or are you & Jim pretty confident they're FSB/F150 spindles?

thanks again -Jeff

DirtDonk · Jul 13, 2019

I'd still like to see pics. I haven't seen anything regarding the brake calipers themselves, and that would confirm things a bit more. The numbers would cement it.
So when you get a chance. No emergency, as you know you need the sleeves no matter what. So just for the FYI department.

Paul

1strodeo · Jul 13, 2019

Yes Sir, oh and by the way I KNOW for a fact I oriented the zerk when I installed the 3-way kit, my guess is the alignment shop did it but like you said even the pros arent always aware of how it should be.

1strodeo · Jul 14, 2019

Here are pix, number on spindle steering arm is 620170 -jeff

Bump steer gone

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