A couple of little tricks in case it could be useful to someone:
The tow hook on the passenger side had been bent up at some point in my car's life. This made it very difficult to tighten the nut to the trailing arm. I tried to hammer it down but there's not enough running space to get a good whack at it. I also tried a crowbar but you can't insert the crowbar and reach the subframe because the big washer is in the way. Since brute human force didn't seem to work I thought of using mechanical help. I went into the trunk of my E46 and picked up the spare tire jack. There is just enough room to slide it in there upside down and gently bend that bad boy back into the proper shape

Before and after:

The tow hook on the passenger side had been bent up at some point in my car's life. This made it very difficult to tighten the nut to the trailing arm. I tried to hammer it down but there's not enough running space to get a good whack at it. I also tried a crowbar but you can't insert the crowbar and reach the subframe because the big washer is in the way. Since brute human force didn't seem to work I thought of using mechanical help. I went into the trunk of my E46 and picked up the spare tire jack. There is just enough room to slide it in there upside down and gently bend that bad boy back into the proper shape


Before and after:

