Front lower control arm bushing change questions - help

[s-10fan262]

So i have a 95 lt1 Trans Am with umi front lower control arms and the h.e.m.i joints have wore out and make terrible noise....im gona change em out for greaseable poly bushings. has anyone done this b4 ? advise or walk throughs . they are still on my car this is just a pic of wat i have.2300.jpg

[bri2203]

Can't be done easily.

-Replace joints
-buy control arms with poly bushings
-stock arms back on.

[landstuhltaylor]

Don't use poly for the caster bushing, it will fail

[s-10fan262]

Which one is the caster ? only change the 2 ? when i was tryin to find the noise prob someone told me to do all 4