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2014 Mazda 6 Manual
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123 Posts
Discussion Starter · #1 ·
Control arms are squeaking like crazy (I siliconed the bushings and it cleared up for a few days but returned).

How hard is it to replace the lower control arms myself? is there a good DIY somewhere?
 

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8,273 Posts
Not that hard, not really a DIY yet. Just take your time.
 

· Rally Racer
2004 Mazda 6s Wagon ATX
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4,807 Posts
Control arms are squeaking like crazy (I siliconed the bushings and it cleared up for a few days but returned).

How hard is it to replace the lower control arms myself? is there a good DIY somewhere?
Not bad at all. Just make sure you have a few tools. Generally you need a 1/2in drive metric socket set, torque wrench and joint separator.
Bicycle part Tool Auto part Composite material Metal


When you toque them down at the end make sure you do it with the suspension in the normal ride height position.
Nice and easy unless everything is super rusted.
 

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2005 6s Grand Touring Wagon
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336 Posts
Not bad at all. Just make sure you have a few tools. Generally you need a 1/2in drive metric socket set, torque wrench and joint separator.
View attachment 246193
I tried to use one of those for my front lower rears. Amazon Special. Not sure where to source a better one, but I ended up stripping the thread on the bolt because the damn thing was in so tight. Ended up using the tool to preload the joint and whacked it several times with a BFHammer to get it off. Tool shot across the garage with a ping once it broke free... good times. :D
 

· Rally Racer
2004 Mazda 6s Wagon ATX
Joined
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4,807 Posts
I tried to use one of those for my front lower rears. Amazon Special. Not sure where to source a better one, but I ended up stripping the thread on the bolt because the damn thing was in so tight. Ended up using the tool to preload the joint and whacked it several times with a BFHammer to get it off. Tool shot across the garage with a ping once it broke free... good times. :D
Sounds about right. Did you lubricate the threads and piston head well? Most times the threads strip when they are not greased prior to use. Always makes me jump when that thing lets go. You never know the moment it is going to BAM!! let go...
 

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2005 6s Grand Touring Wagon
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336 Posts
Sounds about right. Did you lubricate the threads and piston head well? Most times the threads strip when they are not greased prior to use. Always makes me jump when that thing lets go. You never know the moment it is going to BAM!! let go...
Yeah. I lubed up the tool with 3 in 1 oil prior to use (vs WD-40 lol). The threads weren’t square profile like one would expect from a heavy duty tool, so not surprised they turned into shavings.
 

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12 Posts
Lower control arms are quite easy, BUT... having the PROPER tools really helps !

ALWAYS wet all bolts and nuts with PB BLASTER, it's what works and that is really a NO BRAINER !
DO NOT use WD40, it is a grease/oil displacer, NOT lubricant !

In reverse:
1. ALWAYS tighten bolts of control arms with vehicle weight(NOT on lift or floor jacks), at the end/final.
2. ALWAYS pre-lube everything
3. Having impact driver really aids in the R & R
4. DON'T skimp on VALUE, buy good stuff that WILL last(don't be a cheap-skate).
Otherwise you'll be doing it AGAIN soon !
5. PUT a large cloth bag or similar at end of large nuts so they don't FLY and hit someone(you ?)
6. DON'T rush, takes time, it is easy but you don't want to do again.

Everything else should be self common sense
Vrooom, Vroom...
 

· Rally Racer
2004 Mazda 6s Wagon ATX
Joined
·
4,807 Posts
Lower control arms are quite easy, BUT... having the PROPER tools really helps !

ALWAYS wet all bolts and nuts with PB BLASTER, it's what works and that is really a NO BRAINER !
DO NOT use WD40, it is a grease/oil displacer, NOT lubricant !

In reverse:
1. ALWAYS tighten bolts of control arms with vehicle weight(NOT on lift or floor jacks), at the end/final.
2. ALWAYS pre-lube everything
3. Having impact driver really aids in the R & R
4. DON'T skimp on VALUE, buy good stuff that WILL last(don't be a cheap-skate).
Otherwise you'll be doing it AGAIN soon !
5. PUT a large cloth bag or similar at end of large nuts so they don't FLY and hit someone(you ?)
6. DON'T rush, takes time, it is easy but you don't want to do again.

Everything else should be self common sense
Vrooom, Vroom...
Nice write-up/advice.

Keep in mind when torquing a bolt that adding a lubricant lowers the torque value by 25-50%
The "non-lubricated" state of a bolt is considered to be clean with a light coat of machine oil on it, as if you just cut it.
If you shoot for the middle/lower of the specified torque range it should be fine regardless of lubrication state.
 
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