Any help fixing bump steer?

[DrunkenSlug]

Long time teamroxor! I've still got the roxor, still having fun with it (albeit diesel being 6$ is a bummer right now!)

Was wondering if anyone had purchased the BMF SPOA kit? I did and went with 38" tires with some 2" spacers. I find that the roxor likes to wander all over the road now. I've had my alignment done and confirmed at 2 separate shops now. They say that the castor(?) is 0* now because of the lift and its unadjustable?

Whats the fix here. Driving my roxor is a chore now instead of enjoyable haha. Is this what bump steer is that people talk about? It'll drive down the road straight. The second you hit anything it just goes allllll overrrrrr the road. Even small bumps hardly discernible by my eyes metrics


Pic of the setup



Oh one more for you guys, my ebrake light no longer turns off even with ebrake not set. It's been like that since I lifted it. Checked for obvious wiring under near that might have come undone, nothing I see.. Any ideas? Maybe I smacked something back there or moved something? idk.

 

[Longslyde]

I did a Rough Country SOA (5-5.5" Lift) with 35" Tires and 1.5" spacers on mine. I did put a different steering stabilizer on. I did my own alignment and zero'd out the toe. One finger steer to 70 MPH and after that you're fighting wind to 80 MPH, so that gets a little hairy.
Did your kit come with a drop pitman arm? I can't tell by the pic. But that is a necessity with that much lift. Geometry will be off HUGE and it would be turning the wheels to the right on initial bump, then pull left like crazy on the upswing. If you already have that, find out how they aligned it, If they put toe into it, that can throw you around. I try to keep it at 0 Degrees myself, if it feels too lose, give a half degree toe-in, if its still too tight you "can" try a half degree out. Try to avoid toe out at all if possible.
All of this in contingent on having good steering components and wheel bearings that aren't sloppy, of course.

 

[DrunkenSlug]

I did a Rough Country SOA (5-5.5" Lift) with 35" Tires and 1.5" spacers on mine. I did put a different steering stabilizer on. I did my own alignment and zero'd out the toe. One finger steer to 70 MPH and after that you're fighting wind to 80 MPH, so that gets a little hairy.
Did your kit come with a drop pitman arm? I can't tell by the pic. But that is a necessity with that much lift. Geometry will be off HUGE and it would be turning the wheels to the right on initial bump, then pull left like crazy on the upswing. If you already have that, find out how they aligned it, If they put toe into it, that can throw you around. I try to keep it at 0 Degrees myself, if it feels too lose, give a half degree toe-in, if its still too tight you "can" try a half degree out. Try to avoid toe out at all if possible.
All of this in contingent on having good steering components and wheel bearings that aren't sloppy, of course.

Hey dude! Long time!

This is what all the kit consisted of. The spacer for the steering arm ended up not being long enough (it rubbed my spring) so I had to go get another roughly 1.5" spacer and a much longer bolt. I've never gotten much into the suspension stuff before, this is my first big lifted thing. You're referring to the angle of the steering bar right? Would I want that steering bar basically parallel to the ground? If so, mine is not. I attached a few pics of how it's all installed. The bmf guy mentioned everything looked fine, maybe you'll see something I/he missed? Appreciate you getting back to me!

 

[Longslyde]

Heya! Well, the angle isn't horrible. But something that stands out for some concern to be on the safe side, or at least know what to watch out for. With the size of tire, 2" spacers, and the extension you have on the steering rod end, there is a concern for steering failure. First thing I ran into was I didn't red loctite the Chiznet outta that bolt and it came loose in short order, causing really loose steering. And the leverage you have with the tires and spacers, and the extended bolt is one good jolt from snapping it off. That happened to me also. If this is only a trail rig, it may be fine since no real speed is involved, but on the street it could be a problem.
Put the front on stands, Spin the tires in the air and draw a straight line down the middle with some chalk, then measure front and back to ensure the identical measurement for 0 degree toe and see how it handles. Try starting there and hope it makes her handle better!