Good idea Stephen, that was going to to be my next suggestion. I have had amazing results with removing bolts that are hopelessly seized by heating them nearly red hot and then melting a candle into the seized area. I believe that the aromatic and paraffinic hydrocarbons in the candle get drawn up into the corrosion, almost like brass does in a brazing operation, and provide an internal lubricant to the rust. I have not run into a single bolt that has not released with the candle wax method since. Even the EGR fitting on the down pipe on my '75 SportWagon, which was corroded so badly even the remaining threads are half missing, released. I only discovered that trick AFTER I had re-built my front suspension. It sure would have made it easier that the cutting torch method.Originally Posted by oldopelguy
And do this from both ends of the bolt.
After that, use Dave's method to try to release the bolts by turning them.
HTH and good luck