so i cannot get the back bolt out of my lower A arms that connects to the K member. the front ones just came out hitting them with a hammer, but we have used a 20 lb sledge on the back ones and they are not comming out, one of them came out part of the way, but thats it. i really need some help fast, thanks guys
have fun. sounds like the bolt is rusted into the metal sleeve in the bushing. the only thing that i can think of to work is a hacksaw. get it between the k-member and the arm and cut the bolt. other than that, a torch.
I got out my big flat blade screwdriver (you know the one that doubles as a prybar.) and my 2lb hammer placed the flat blade of the screwdriver on the end of that bolt and beat the living **** out of it till it gave up. PB blaster helps the process along but most of it is just brute force.
I had the same problem with mine that had been on there for 120K miles.
I went and got one of those really pointy air hammer attachments and ground it down so it was not so sharp. Then I put the nut on the end of the bolt just enough so that the air hammer would not slip off the end of the bolt. Then I just went to town on it with the air hammer which eventualy got them out.
Prior to that I had tried sevral things that involved a big sledge hammer.