My Expy spent most of its life in Michigan so when I brought it down to Florida and pulled the manifolds off it was all rust. 5 bolts broke off and it ended up being a pulling the heads job as well. Turned out to be a good thing because most of the valves where bad. Getting the manifolds off was not all that hard but with rust and the age of the bolts is what made it difficult.
Jake the expy up take the wheel off, take out the wheel liner and have at it. Pretty straight forward.