Ok, so far I have yet to remove self-locking cam nut, cam collar, and flange bolt in order to remove the lower arm.

I don't know if the self-locking cam nut is supposed to be the one that turns. Do I just try to remove the flange bolt instead of self-locking cam nut?

How is the cam collar attached to the self-locking cam nut?

Any tips how you did?

 

I need to fix it by tomorrow.
I know a number of you guys replaced control arms, plz help me out.

 

are you going by the instructions in the service manual?

 

Yes, I'm going by the service manual.
The instruction said I have to remove the top one(self-locking cam nut), but there is no space above the nut. When I tried to do the bottom one first, it just doesn't turn at all.

 

Liquid Wrench is your friend

 

i sent you a pic which should show you what parts are actually nuts and what parts are attached to collars.

btw it will be easier to do all this with the ball joints disconnected. and rotors removed etc.

 

Yea ball joint has been removed.
I will get an air tool to try to remove the bottom one(flange bolt) instead of doing the top one.