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Old 03-13-2018, 02:47 PM   #1
MHeffeGMC71
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Unhappy Truck wonders

Morning all, well my question is what do I need to add rack and pinion to my truck. I did a LS 6.0 swap in my truck and want it to be more user friendly when I drive. I replaced all the suspension back to factory new. But the truck still wonders and has bump steer when I let off the gas. Thanks
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Old 03-13-2018, 03:09 PM   #2
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Re: Truck wonders

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Originally Posted by MHeffeGMC71 View Post
Morning all, well my question is what do I need to add rack and pinion to my truck. I did a LS 6.0 swap in my truck and want it to be more user friendly when I drive. I replaced all the suspension back to factory new. But the truck still wonders and has bump steer when I let off the gas. Thanks

Your problem might be because your center link is installed backwards. The nuts on the joints should be facing forward. That changes everything....

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Last edited by LockDoc; 03-13-2018 at 03:14 PM.
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Old 03-13-2018, 03:41 PM   #3
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Re: Truck wonders

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Originally Posted by LockDoc View Post
Your problem might be because your center link is installed backwards.....

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See above
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Old 03-13-2018, 04:22 PM   #4
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Re: Truck wonders

I am in the midst of a bolt in install from Flaming River. I will update you on any difference in driveability. Also, I canít speak to fitment with an LS. I am installing with a 250 L6 and will require a roughly 1/2 in motor mount lift.

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Old 03-13-2018, 04:28 PM   #5
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Re: Truck wonders

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See above
Not understanding what you mean....

He said his truck "still wanders and has bump steer when I let off the gas" and I said the problem might be because his center link is installed backwards, which it is, and which could cause the problems he is seeing. He may not need to go to the trouble and expense of installing a rack if correcting that regains his "driver friendliness"

Cryptic posts don't add anything to the thread.

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Old 03-13-2018, 05:12 PM   #6
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Re: Truck wonders

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Originally Posted by LockDoc View Post
Your problem might be because your center link is installed backwards. The nuts on the joints should be facing forward. That changes everything....

LockDoc
x2


Is that better? LOL!
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Old 03-13-2018, 05:28 PM   #7
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Re: Truck wonders

It's a wOnder the truck doesn't wAnder with that thang thataway.
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Old 03-13-2018, 05:38 PM   #8
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Re: Truck wonders



see above = what Doc said or x2
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Old 03-13-2018, 05:45 PM   #9
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Re: Truck wonders

Flip that center link and save a few bucks! With everything new it should drive pretty well.
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Old 03-13-2018, 06:57 PM   #10
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Re: Truck wonders

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Originally Posted by demian5 View Post
x2


Is that better? LOL!
Much better. Thanks.

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Old 03-13-2018, 07:42 PM   #11
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Re: Truck wonders

First off thanks for all the helpful replies. I just came from my new mechanic who's going to switch it around for me we'll see if that solves the problem.

Take a sec to enjoy how far I've come from when I first got this suspension redone on this truck true craftsmanship
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Old 03-13-2018, 08:23 PM   #12
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Re: Truck wonders

Yup, don't see that everyday. Reminds me of the Burban I looked at buying that had the springs removed to lower it.
Good job on cleaning that mess up.
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Old 03-13-2018, 09:07 PM   #13
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Re: Truck wonders

Quote:
Originally Posted by MHeffeGMC71 View Post
First off thanks for all the helpful replies. I just came from my new mechanic who's going to switch it around for me we'll see if that solves the problem.

Take a sec to enjoy how far I've come from when I first got this suspension redone on this truck true craftsmanship
Good deal. Keep us up to speed on the outcome.

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Old 03-13-2018, 10:14 PM   #14
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Re: Truck wonders

Ok well ****, now I just realized my centerlink is on backwards. More work for me. Yay.

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Old 03-14-2018, 11:34 AM   #15
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Re: Truck wonders

Any advice on removing the pitman arm and idler arm from the centerlink without ruining my brand new parts and dust boots?
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Old 03-14-2018, 11:39 AM   #16
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Re: Truck wonders

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Any advice on removing the pitman arm and idler arm from the centerlink without ruining my brand new parts and dust boots?
Use the right tools. Pickle fork or ball joint remover. They're brand new, shouldn't be hard to remove.
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Old 03-14-2018, 12:49 PM   #17
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Re: Truck wonders

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Any advice on removing the pitman arm and idler arm from the centerlink without ruining my brand new parts and dust boots?
To try to save the boots I would use an air chisel. I would pad it with brass or aluminum and hammer on the threaded end of the pitman and idler arm. Do the same on the tie rod end if you can get to it.
Or, use the pickle fork as a pry bar while using the air chisel on the tie rod arm. Try to not let the pickle fork contact the rubber with this method.

Lastly you could put force pulling the tapered joint(tie rod, Idler, pitman) while hitting the side of the female taper with a large hammer.
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Old 03-14-2018, 01:12 PM   #18
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Re: Truck wonders

You need a puller for the pitman arm. Local autozone loans the tool for free. You can also buy it at harbor freight for about $8. Smack the side of the centerlink with a sledgehammer to remove the idler arm, it should pop right out since it’s new. I use a pickle fork on old stuff that’s coming out to be replaced, where damage to the rubber boot doesn’t matter.
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Old 03-14-2018, 01:30 PM   #19
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Re: Truck wonders

Ok cool. I have a pitman puller, but wasn't planning to pull the pitman arm off the gearbox.
Was thinking:
Unscrew each tierod connector, leave the tie rods on the centerlink. Then remove the centerlink from the idler and pitman (tapered side). Then flip it 180. That'd put the tierod bolts frontwards.

I can prob make a brass rod to fit into my air chisel. Since they're new, make just smacking the centerlink with a dead blow hammer would free it? IDK, just don't wanna ruin $100 worth of new Moog parts.
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Old 03-14-2018, 04:39 PM   #20
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Re: Truck wonders

Hitting it will knock the tapered joint loose but hitting it without pressure pulling it outwards will probably not do anything. They also make a screw type tie rod puller which may fit the idler and pitman arm, I'm just not sure of the fit, they usually don't fit well. If you can borrow one at oreillys or autozone it would be worth a try.

I suspect you have a recent alignment....you could save that alignment by measuring the toe in before you change the parts out and then adjusting to the same spec after the switch.
To replicate the toe in, roll the tires over 2 layers of plastic sheeting, thick black garbage bag pieces(reduces friction of tire on the ground), wire a board across each tire through the wheels, measure the distance front and rear of the tire using the boards, subtract front from rear distance to get current toe in.
Adjust each side equally to replicate this distance once you switch the parts out.
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Old 03-14-2018, 06:19 PM   #21
superhondaz50
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Re: Truck wonders

Hasn't been aligned yet, still assembling it.
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Old 03-16-2018, 10:35 AM   #22
MHeffeGMC71
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Re: Truck wonders

So after some more looking around we found this too
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Old 03-16-2018, 11:43 AM   #23
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Re: Truck wonders

Wait, are the A-Arms connected to the frame with U bolts?

-Paul
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Old 03-16-2018, 12:33 PM   #24
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Re: Truck wonders

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Originally Posted by MHeffeGMC71 View Post
So after some more looking around we found this too
Ooops! That doesn't look good.

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Old 03-16-2018, 12:42 PM   #25
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Re: Truck wonders

subscribed, wanna see how this turns out!
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