Rear Control Arm

I want to change my rear control arm (from HF to SI) so I can add a rear sway bar. How hard is this to do myself?

simple they all bolt and unbolt the same way, you'll need the swaybar and all the mounting brackets from the donor car....

I'm getting an aftermarket bar, so I need to get the arm and brackets from an SI, any year 2nd gen crx exchange for my 91? Oh yeah, I should avoid the 88 rear arm, right?

simple they all bolt and unbolt the same way, you'll need the swaybar and all the mounting brackets from the donor car....

Yes avoid the 88, any year si crx lower cont. arms and all the brackets will mount your a/m sway bar, just get the sway bar for whatever year LCA you get.