So I got 1 replacement left side(passenger side) trailing arm for my 99 CX hatch a while back and I need my car aligned and I barely found out that It is damaged so I need a new one to get the car aligned according to the shop I went to. I need help because I found some EX civic trailing arms and I was wondering if I was able to change them into my car but I need help because I have no idea if I could fit them on the car the EX trailing arms are apparently 96-00 EX trailing arms that's all I know about them. Any info on what I could do or if I can fit them will be appreciated.

 

Yes, they will fit.

However, your CX should have drum brakes (assuming it's stock). Your replacements probably have disc brakes. You'll need the rest of the brake parts. Search for conversions. There's probably a sticky in the FAQ.