Rear trailing arm replacement
 

https://cimg4.ibsrv.net/gimg/www.s2k...c08f423db1.jpg
Just wondering if I'm missing something. I loosened nut (27).... and the bolt will not come out! I tried leaving the nut on and hitting it with a hammer... no luck. Do I just need a little more force?

The bolt is probably rusted to the bushing.

Try turning the bolt side to crack it loose. If it doesn't come loose, you'll need a Sawzall.

Don't use a torch.
Put the torch down.
This isn't medieval times.

hahah you sound just like my friend Who is 30 years older than me and always talks to me like he's my father.

I can't turn it side to side because there is a washer type thing built into the nut so that it can't turn... only slide in and out.

will changing this affect the alignment!?

also, advanced auto tells me that the part is like $189, that seems RIDICULOUS. I'll buy the $35 used one from Ebay If that's the case... anytime have any experience?

$189 for the arm? It's always a gamble buying a used arm because you can get a bent one (I did, not fun). The bolt should be able to rotate with the washer; this brings the lower arm in and out in relation to the subframe. Your alignment will definitely be off once you're done.

New genuine arm from Honda is $68 and adjustment bolt $13.
If you can't get it out using wiggle and lots of penetrant just cut it out, it's pretty common for these to seize up completely.

Thanks!

The idea of the cam shaped washer is it changes alignment as you turn nut. If yours doesn't turn, its rusted in place. As stated, not uncommon. Needs to be cut out if hammering and wrenching doesn't free it.

You cut the bolt in between bracket and arm. Both sides, nut side and bolt head side. When you replace, use plenty antiseize on bolt shaft to prevent future recurrence.

You'll need an alignment immediately after.