welded diff clunking @ low speed turns (not just chirp)

[jt1583]

I've had my welded diff for about a year and it clunks alot on low speed turns/parking along with the chirping. the clunking is definitely coming from the back and it happens on pretty tight turns, not all though, mainly tight and lower speed. anyone have issues like this? heres the setup on the car

*s14 w/ s13 (solid mount) welded diff
*eibach springs and stock suspension ( i think, had from previous owner, ill have coilovers soon - could suspension cause this?)
*aluminum subframe collars - i still have the bushings on and they look beat to hell, all crack and squished. may not matter with the collars but still
*205/55/16 tires, used tire store special

does this just come with the territory or is something wrong? i lifted the rear end up and went under checking everything and shaking around but couldn't find anything. any help appreciated