While they are fresh in my mind, some comments on replacing the lower control arm cam bolts that have seized in the bushings.
First, Comadreha's guide covers just about everything you need to know.
http://www.supramania.com/forums/showthread.php?t=84302
In the guide he says that it is possible to remove the bolt with only one cut. At the time, it wasn't (at least to me), really clear what he meant, but I understand now. This method only works if you plan to replace the arm with a new one, like I did. (It may also work if you have only one seized bolt so that you can wiggle the arm around to free it from the bracket after the cut.)
a) Cut off the control arm right at the seized bushing with a Sawzall. Only takes a few minutes since the arm is soft steel, but obviously the arm is toast after this.
b) Cut through the bolt on the *bolt head* side. This leaves the arm stuck in the bracket but with just the bolt end sticking out of one side. You can then wiggle it around to pull it out without cutting off the other side of the bolt.
I used the thinnest cut off wheel I could find for my angle grinder (0.045 inch as I recall). Probably took less than 10 minutes to cut through the bolt and bushing tube with a fresh wheel.
You do not need to remove the ball joint from the spindle. Instead, I just removed the three bolts that hold the ball joint to the arm and slid it out once the arm was free from the car.
Cut the bolt as far away from the bracket as possible to avoid damaging the bracket.
Here's a pic of my shiny new arms.
First, Comadreha's guide covers just about everything you need to know.
http://www.supramania.com/forums/showthread.php?t=84302
In the guide he says that it is possible to remove the bolt with only one cut. At the time, it wasn't (at least to me), really clear what he meant, but I understand now. This method only works if you plan to replace the arm with a new one, like I did. (It may also work if you have only one seized bolt so that you can wiggle the arm around to free it from the bracket after the cut.)
a) Cut off the control arm right at the seized bushing with a Sawzall. Only takes a few minutes since the arm is soft steel, but obviously the arm is toast after this.
b) Cut through the bolt on the *bolt head* side. This leaves the arm stuck in the bracket but with just the bolt end sticking out of one side. You can then wiggle it around to pull it out without cutting off the other side of the bolt.
I used the thinnest cut off wheel I could find for my angle grinder (0.045 inch as I recall). Probably took less than 10 minutes to cut through the bolt and bushing tube with a fresh wheel.
You do not need to remove the ball joint from the spindle. Instead, I just removed the three bolts that hold the ball joint to the arm and slid it out once the arm was free from the car.
Cut the bolt as far away from the bracket as possible to avoid damaging the bracket.
Here's a pic of my shiny new arms.