How do i get rid of this bump steer? - Pirate4x4.Com : 4x4 and Off-Road Forum
 
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Old 03-20-2019, 10:53 PM   #1 (permalink)
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How do i get rid of this bump steer?

I have a 08 Tundra with 16" of lift on 40s. Its a SAS with Curry axles in the front and rear. I bought it like this and it even came with a Atlas divorced transfer case. It use to have a Appleton hydro steering set up but it leaked bad and the steering radius sucked. I had it changed over to a 1 ton Chevy power steering box with crossover steering and Psc hydro steer. It has a single triangular front 4 link with Fox adjustable coilovers. It has some crazy bump steer right now. I have looked at a bunch of forums on this and 90% of the people say not to put a track bar with the triangular 4 link. I see the other option is to get rid of the triangle 4 link and make those bars parallel to the other two bars and install a track bar. Then i have seen a few say something about installing a 3 link with a track bar. What is the best set up to get rid of this bump steer besides full hydro which i don't want?
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Old 03-20-2019, 10:56 PM   #2 (permalink)
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You likely will have to change the suspension from a triangulated 4 link to a 3 link or parallel 4 link with track bar. Make sure the track bar is parallel to drag link and similar length.

A 3 link will bind less on articulation and a parallel 4 link permits some degree of backup if you break a link or joint.
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Old 03-20-2019, 11:03 PM   #3 (permalink)
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The guy in charge is going to get rid of the triangle and doing a custom parallel 4 link with track bar. Looks like were going in the right direction.
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Old 03-21-2019, 08:23 AM   #4 (permalink)
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You were better off with the full hydraulic and your links are going to be so steep it will be hard to get rid of the bump steer with the 5 link set up.

Who sent you in the direction of a conventional steering with assist? How are your driveline angles at that height?
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Old 03-21-2019, 08:33 AM   #5 (permalink)
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Lower it.
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Old 03-23-2019, 08:50 AM   #6 (permalink)
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Post a pic of this thing. Gonna be a pain in the ass to get it right

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Old 03-23-2019, 12:45 PM   #7 (permalink)
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Keep 4 link. Run bell crank steering with cylinder assist.
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Old 04-14-2019, 08:13 PM   #8 (permalink)
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I'm curious as to how much travel and/or articulation the suspension has since it would seemingly influence options with regards to the steering.
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