Honestly, I haven't found a GM manual yet that says to heat or warm one up. I use a piece of all thread that is cut off longer than a factory bolt and draw it on with a ratchet. That's just me. I run a piece of small chain through the balancer to hold it still since I don't have a fancy tool to do that. Then again, I have found a GM manual yet that says to use a piece of chain or holder to keep the crank from turning.