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Thread: Idler Arm and Gearbox

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    Idler Arm and Gearbox

    I took my van in for an alignment at Midas today. They did the alignment but said my "idler arm and gear box are loose." Are these things I can fix myself? Do I need ones or do they just need to be tightened? On the way home from Midas I noticed that the car is still pulling to the right. I called them and they said it was because of the idler arm.
    Tom - 1984 Toyota Van, Customized Camper

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    Re: Idler Arm and Gearbox

    Either the front end is "tight" and adjustments are made to compensate for wear and tear to bring everything into spec
    OR
    There are parts that require replacement before the alignment can be performed.

    I would learn how to inspect the front end myself and effect any repairs that are required.

    On the upside, at least you found out where NOT to take your vehicle for repairs.
    BB

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    Administrator timsrv's Avatar
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    Re: Idler Arm and Gearbox

    Having places like this lie to you is unfortunately pretty common. I've dealt with the Battle Ground, WA Les Schwab for many years and those guys are sharp and always tell me the truth. Shortly after we moved (last year) I took my 91 All-Trac Previa to a different Les Schwab (local to our new address). It had irregular wear issues on the front tires so I knew it had an alignment issue. They agreed to align and install new tires. So about 30 minutes after dropping it off I get a call saying they needed me to come talk to them regarding repairs. When I got there I was told the new tires were installed but they couldn't align it because I had bad tie rods. I knew this to be complete BS as I had just checked for play in the front before taking it down. When I challenged the manager and asked him to show me the problem he gave me some BS story about customers not being allowed in the shop.

    So I ended up driving it to the Les Schwab in Battle Ground where the guys gave it a thorough inspection and told me everything was "nice & tight". When I told them about the other store, they apologized and aligned the Previa for free. All I'm saying is if you don't know how to check yourself you are vulnerable to this sort of thing. If you don't want to get dirty, then at least take the van to another alignment place and get a 2nd opinion. Don't tell them what the 1st place said. If they come to the same conclusion then it's safe to say they are being honest with you. Tim

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    Re: Idler Arm and Gearbox

    So, I took it back and complained today. They out it back on the machine and did a new alignment. It was "toe in" still and they had forgot to adjust the "caster". When they finished up it was still pulling to the right. They said it was most likely the idler arm and I told them if they knew it was they idler arm the whole time then why did they even do the alignment?

    The guy agreed that if I replace the idler arm and brought the car back with in 30 days that they would do a new alignment for free. I have two questions....

    1. Is this even worth it? I don't mind it pulling to one side that much as long as it's not going to hurt the car or my gas mileage.

    2. If I do replace it, should I look for a new part or could I get one off a car int he junk yard that has 100K on it?
    Tom - 1984 Toyota Van, Customized Camper

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    Re: Idler Arm and Gearbox

    Working backwards - new or used depends on you and you finances but given how cheap they are (A/M <$100)
    But first you need to determine if that part is really required.
    If something is broken, it needs to be corrected or it WILL get more expensive the longer you ignore it.

    Sorry, but I am suspicious of anyone who does an alignment and "forgets" to make some adjustments, especially Toe.
    Besides, if there is play in the linkage, you can adjust all day long and it will never be right.
    Their story smells and it is time to get a 2nd opinion from ANOTHER shop (preferably not a chain if possible) or better yet, check it out yourself.

    Another thing to consider - many other things can cause a "pull", from a soft tire to a dragging brake, among a couple of dozen other things.

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    Re: Idler Arm and Gearbox

    Yes, I agree. A worn idler wouldn't cause pull anyhow.........it might create some slop in the steering, but not pull. A bad alignment or perhaps uneven tire wear could cause pull. Try rotating your tires diagonally to see if it changes. Then go to another alignment shop and get a 2nd opinion. Tim

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    Re: Idler Arm and Gearbox

    Back in a previous life I used to be an alignment mechanic. Unfortunately Tim's experience is all too common. While there are great shops, there are also bad ones. If the shop can't or won't show you the play in the parts they suggest replacing, go elsewhere and get a second opinion.

    The others are correct, a worn idler arm can't cause a pull. But it can cause, as Tim says, slop in the steering, which makes it impossible to set the toe in correctly. If it's either toeing in too much or too little, both tires aren't pointed straight ahead when it's driving down the road, and this can cause the vehicle to wander and handle poorly, and of course its hard on tires. In other words, if the idler arm has play it's a good idea to change it and get another alignment.

    I agree -- swapping the tires will tell you if the tires are making the pull and I'd start there. If it's not the tires, the pull has to be either the camber or caster adjustment.

    On a side note, does anyone know what the caster setting fromt he factory is for one of these vans? I seem to remember that they came with high negative caster which helps the steering wheel return to straight after going around a corner.
    Last edited by toad; 11-05-2013 at 09:24 PM.

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    Center Arm for 84/85 steering

    Hey Guys,

    This site has truly helped me diagnose and ultimately keep my van alive. Thanks you!!
    Does anyone know if the center arm is the same throughout all the TV years?

    -Ryan

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    Re: Center Arm

    Ryan, there are a few guys here looking for that part.....it is only found on 84-85 vans.............important to check it for slop before removal from donor van and important to do a good lube job on it before using it...i cant find it as a new part anywhere........if you do let us know...NIk
    Last edited by nikifix; 04-19-2015 at 02:35 AM.

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    Re: Center Arm

    Thanks Nik, I have been unablue to find a new one and am waiting for a donor to show up at the junk yard. Thanks for the info! I'll let you know if I find anything.
    -Ryan

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    Re: Center Arm

    thanks for that Tim and "Red" thanks you too........

  13. #13
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    Re: Idler Arm and Gearbox

    Gonna bring this back up.

    I've recently replaced all ball joints and inner and outer tie rods, sway bar bushings and end links on my 89 van. Had my van aligned and it came back with the steering wheel about 2 inches off center when driving straight. Took it back and they told me there's too much play in my 'gearbox' to correct it. I feel like this is a bunch of b.s. b/c it was fine before.

    Anyway, I do have a little over an inch of free play at the steering wheel. Close to spec but off. Could this be in the bevel gearbox?

    I do feel like the van wanders some as well and just doesn't handle as well as it used too despite new tires, shocks, and the before mentioned suspension work. Could this be the idler arm? Or maybe Goodyear just screwed me and I need to go to another alignment shop?

    Also, I found the part number for the bevel gear box but not the idler arm. Anyone know it?

    Thanks.

  14. #14
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    Re: Idler Arm and Gearbox

    Ok, I crawled under the van and inspected everything but don't see an idler arm. Am I overlooking something obvious here or are there differences btw the early and late model steering?

    But, I think I found my problem. The out tie-rod ends I put on are trash already. The boots are broken and there's up and down play. These were Beck Arnley and have about 2500 miles on them. Makes me concerned about the inner too.

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    Re: Idler Arm and Gearbox

    The center arm/idler arm are only used on the 84 - 85 vans. 86 & up use rack & pinion. More information on it here: https://www.toyotavantech.com/forum/...171-center-arm. To identify your play, have somebody rock the wheel, then get under the van to see where the play is.

    FYI, several years ago I replaced ball joints on my 89 van "just because". At the time my stock ball joints had 150k miles on them and they were still good. After only about 10k miles I had a badly failed ball joint, and yes, I had also used Beck Arnley. I learned a lesson about Toyota quality vs aftermarket (at least Beck Arnley). Fortunately I had kept my old joints as spares, and eventually ended up putting them back on. Tim

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    Re: Idler Arm and Gearbox

    Thanks Tim, that's the plan. The ball joints were special order from NAPA so hopefully they will be okay. Thanks for explaining the idler arm.

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    Broken! '84 Steering Idler Arm part# 4549029445

    Hi- I'm new here & just trying to help my Dad fix his 84 Toyota Van. His center steering arm broke. The part is discontinued & we can't find any pick n' pulls anywhere who have the van or parts. I'm at my wits end trying to find this thing.

    Toyota Part # 4549029445

    I think it's the Center Arm but I've also seen it might be called something else (Bell Crank, Pitman Arm or Idler Arm). It's the L-shaped cast-steel bracket, about 8 x 8 inches, that connects his front-left wheel to the center steering rod. It snapped at one end. I attached pictures & diagrams below.

    Last we saw the part was listed for $175. Given how hard it is to find we'd probably be willing to pay a little more, plus any shipping costs. We're next to Seattle, WA on Vashon Island.

    Even if you don't have the part, let me know if you know anyone who might.
    Thank you,
    Mike Leavitt
    206-853-0925

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    Last edited by MikeLeavitt; 08-15-2016 at 01:29 PM. Reason: new information

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    Re: WANTED: '84 Steering Idler Arm part# 4549029445

    Here's something you should read...........also good info in the comments below the original post.

    https://www.toyotavantech.com/forum/...171-center-arm

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    Re: WANTED: '84 Steering Idler Arm part# 4549029445

    Quote Originally Posted by timsrv View Post
    Here's something you should read...........also good info in the comments below the original post.

    https://www.toyotavantech.com/forum/...171-center-arm
    awesome. thanks so much. I'll edit this post because now I know the freakin name of the part. thank you!!!

  20. #20
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    Re: WANTED: '84 Steering Idler Arm part# 4549029445

    Howdy, if you end up not being able to find one here, you may look at breakers, or junkyards, overseas. Japan, austrailia, canada, and mexico all got more of these vans than we did

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