Front Lower Control Arm Replacement - 6MT.net Infiniti G35/G37/GTR Forums
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post #1 of 26 Old 09-12-2013, 10:55 AM Thread Starter
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Default Front Lower Control Arm Replacement

Hi there,

I dropped my car off this morning at Mr. Tire to get the front tires replaced. Guy calls me an hour later stating he is the district manager for Mr. Tire... says my brakes, rotors, and control arms all need to be replaced.

I know my brakes need replacing and probably not a bad idea to do the rotors either. I've always been a DIY'er so I will handle those on my own.

Question is on the control arms, how can I visually inspect them to see if this guy is actually telling the truth? Car has 118k on it so it's very possible this needs to be done. I've found some DIY articles on other sites, but can anyone comment on the difficulty?

Also -- aftermarket kits, since the car already has issues with camber, suggestions on parts?

Boston Acoustics Sound System, Continental DWS, Megan Racing Y-Pipe, Berk HFC, JWT Clutch and Flywheel, R1 Concepts Rotors
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post #2 of 26 Old 09-12-2013, 03:53 PM
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I was under my G last weekend & there are lot of bushings and grommets that need to be inspected for cracking and wear

you can't miss them.

jack your car up and look at everything.

Laser Red 2004 G35 6MT Coupe
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post #3 of 26 Old 09-12-2013, 10:33 PM
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An easy way to tell is to look where the lower control arm is attached to the sub frame by the oil pan area. If it looks like this, it needs to be replaced. It's a common problem and a poor design. The arm is supposed to be centered on the bushing.



I have had to replace both arms on both Gs. I most recently used Beck Arnley lower control arms from Amazon that I got for about $68. They have been working as well as the OEM.

The shop didn't tell you why those parts need to be replaced? Luckily for you, they are all easy to replace with hand tools.

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post #4 of 26 Old 09-13-2013, 05:39 AM Thread Starter
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They just said there was a lot of play...the arms were shot and as a result they couldnt do the alignment.

Wow $68...they were asking $1700 for the job.

Do you have a pic of what it should look like?

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post #5 of 26 Old 09-13-2013, 08:16 AM
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I didn't find a good photo but the arm is supposed to be in the middle of that space where the ribs are. It should not be off to the side.

There is also a compression rod under there that also goes bad. It's not difficult to replace the arms, rods and brake parts yourself. $1700 is using OEM parts (that fail) at retail prices.

It takes me about 30 minutes to replace a lower control arm using hand tools, including raising and lowering the car and removing and reinstalling the wheel.

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post #6 of 26 Old 09-13-2013, 09:45 AM Thread Starter
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Raising the car on jack stands should be sufficient correct? No access to a lift.

Youre a life saver gilley. Im gonna do the brakes and rotors too while im at it..are there any group buys or deals going on right now that you are aware of? I havee brembo and would like to do the hawk hps....I think there was a group buy on the stoptech rotors too a while back that looked good. Or as always..any recommendation you have.

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post #7 of 26 Old 09-13-2013, 01:08 PM
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When I said lift it, that's with a jack and jack stands. There are some DIY instructions somewhere on the web.

I use R1 Concepts rotors. They are a sponsor so you will probably get a good deal. They sell pads too.

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post #8 of 26 Old 09-13-2013, 01:31 PM Thread Starter
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:thumbup:

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post #9 of 26 Old 09-14-2013, 07:59 AM
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There seem to be many more options on Amazon for the aftermarket lower control arms. I am using a Mevotech compression rod right now and it appears to be working as well as OEM. The point is, there are many price points on Amazon, so get what you feel comfortable getting.

I got them from amazon because I'm a prime member there so the shipping is free and they have a good selection of aftermarket parts. You can find the arms elsewhere too.

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post #10 of 26 Old 09-14-2013, 12:22 PM
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make sure their not mixing up the compress rod with the control arm. u replace and take it back and they might say u didnt replace it.
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post #11 of 26 Old 09-14-2013, 12:48 PM
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Good point. And you may want to replace both pieces on each side.

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post #12 of 26 Old 09-16-2013, 09:46 AM Thread Starter
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Are there signs of wear I should look for on the compress rod?

I don't mind replacing things if they need to be replaced...but the car is old now, so I always have a hard time justifying spending a lot of money repairing things instead of just buying a new car.

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post #13 of 26 Old 09-16-2013, 12:34 PM
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The compression rods usually make noise when the suspension moves. The lower control arm is a visual inspection to tell if it is bad.

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post #14 of 26 Old 09-23-2013, 10:28 PM Thread Starter
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Been a bit busy and traveling a lot for work, gonna tackle this job next week... I like the prices I am finding on Amazon and also have a Prime account so they pretty much have earned 90% of all of my purchases.... the problem is there aren't any reviews really of any of the parts and I am finding it difficult to figure out which parts are good. They are all similar in pricing... so any suggestions?

They have:

Beck Arnley
Raybestos
Dorman
Mevotech
SPD

Also, thinking of installing some sway bars while I'm doing this -- any DIY articles out there? Usually like to figure out what I'm doing before I do it lol.

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post #15 of 26 Old 09-24-2013, 12:26 AM
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The way I looked at it, the OEM arms suck for quality, so choose the one that makes you feel comfortable. You know the OEM arms will go bad. You might have a better chance with any of the aftermarkets.

Sway bars have instructions. They are kinda idiot proof. Each bar has 4 fastening points and they only fit one way.

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