Those bolts are a pain in the ass. Ive heard of shops and dealers using impacts on those bolts. I never resorted to that because of some of the information ive heard of "banging" or "striking" the balancer with an object like a hammer, and i would think an impact is no different (in my opinion).
To the point i use 2 socket wrenches. 1 to hold the crank in place, the other to loosen the bolts. That method has always worked for me, despite the pain medicine later on and possible stitches once those bolts break loose from the hub. LOL, not too bad though. Just be mindful you still need a puller. Still to this day, i have no idea how i got one of those off by hand at a junkyard one day. LOL... Anywho,
1996 Chevy Impala SS BBB -
1996 Chevy Impala SS DGGM -
Replaced BBB on 4/30/2012