I just did this repair last weekend. Took me 2 half days since I am a novice and had issues taking bolts out of chamber and lower control arm. I replaced with Energy Suspension Polyurethane. Part is for Ford Focus but the trailer arm is the same part on both ford focus and my 2008 mazda 3 GX sedan. You can confirm on rockauto if the trailer arm is the same part number on the 2004 ford focus and your model mazda3..
the part number is Energy Suspension 4.7124R (which is red)
you can also use Energy Suspension 4.7124G which is Black. As far as I know they are the same
But i also have the black version for my front sway bar and I remember reading that the black versions for my sway bar had more oils inside of poly so I went black. But for the 4.7124R it was $10 cheaper so I went with them
The steps I took to replace was:
***first off always watch for spring. I didn't have to secure it but I was paranoid about it coming out and killing me. LOL
Disconnected ABS connector and also the clips that attach it to trailer arm
disconnect clips attaching hand brake cable
removed plastic shield
Removed bolt from bottom of strut
Removed outer bolt from control arm
remove trailer arm bushing bolts
remove bolt from outer chamber arm
******At this point watch out for the chamber as it can bounce upward and will yank on the no hand brake, brake line!!!!!!
At that point you should be able to pull down the trailer arm to get access.
The energy bushing requires you to reuse the pin, so I sat on the ground and put my 2 feet on the trailer arm and used both my hands with a vise grip and ripped the pin out. This wasnt so bad because the original bushing was so damaged. I used a hammer to chip off as much as i could and then an air tool to clean up the pin.
then I removed the old bushing with a long bold, nut, washers and a 6 inch plate of metal which had a hole for the bolt to go through.
With the bolt going through the bushing, nut and washers on far side and plate on front side I was able to use impact gun/wratchet to get the bushing out.
Then greased up new bushing and using same tool I pushed in bushing 90% of way and then used a control arm bushing tool set i rented from auto part store to get the last 10% in.
Then the hard part came. which was to get the in back in. This took my buddy's help and we pushed the pin back in with a clamp and all 4 of our hands to steady it while it slipped it.
Also don't try using an air hammer to push pin it. The Poly just absorbs all the force and it simply would not go in. Slow and stead is the way with the pin.
Hope this helps!!
You have helpped me out many time on this forum!
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