you're having difficulty pulling the bolt cos its spinning in the bushing. you can drop out the spring by compressing it but when it comes time to replace that bolt it's gonna be a real good time. you're gonna have to chop off the tack-welded-on nut on the knuckle and then i believe chop the bolt on both sides and hammer out the remainder. then the bushing will come out. you'd need a new bushing and the bolt first, corse.
edit: oh, and you can probably get the spring out by putting a jack under the perch and then raising the LCA and then putting compressors on the spring. then you can drop arm and you can probably pry out the spring.
edit: oh, and you can probably get the spring out by putting a jack under the perch and then raising the LCA and then putting compressors on the spring. then you can drop arm and you can probably pry out the spring.