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I hear Saturn Surplus had them. It should be the same as a civilian motor. Get the part number from the TM and Google. Did you try the classifieds here? Post a want ad, I'm sure somebody here has one. Keep in mind too, Keith_J posted this a while back in another balancer related thread, kinda...

The pulley is most likely bent. I would get a new pulley if it was my truck. I'm not sure if it can do any damage to the motor as is but I wouldn't risk it.

Ok some pictures. As you can see the rubber on my balancer was shot. See the swelling and the cracks? A couple pictures are shots of how the KD Tool 2291 was used. It worked great and was affordable. The one end of the tool had a standard end for pulling with, the other end was a hex head...

I left the old balancer at my friends house so its gonna he a couple days on the pictures but rest assured ill get them up.

I got my truck all done yesterday. I was really surprised how swollen, rotted and degraded the rubber was on the old one. I used the KD tools puller to remove and install. I'm gonna get some pictures up of the new and old balanced and how to use the tool.

So has anybody else had the wrong size bolts holding the crank pulley on? I took out metric fine thread bolts. Noticed the threads were chewed up a little. I tried to thread them into my new balancer and they wouldn't go. So I started trying other hardware and a 3/8 x 16 bolt fits perfect. Even...

An impact on low works good too. Just be careful.

I finally received the Woodruff keys from the Chevy dealership. The guy was really nice and didn't even charge me postage. Harmonic balancer time this weekend!

I was surprised too, seeing as it was an ACDelco part.

Yeah it does help. Thanks. That's the part I was concerned about. I did speak to the guy at the hardware store. He said the ones he had were mild steel. Not hardened or heat treated or anything. Suitable for use on say an electric motor. I'm not gonna risk it. It looks like I'm gonna have to...

Yes they would. I was trying to get this project down this weekend. A local hardware store has woodruff keys the same size. If I could get it from them, provided they are the same, it would be great.

Anybody?

So I was able to locate the keys at a couple Chevy dealerships within 2 hours of my house. I'm really not wanting to drive that far for an $0.85 part and I would like to have it by the weekend. Does anybody see any reason why I couldn't use a key from a hardware store? Provided it was the same...

Thanks DH. I was gonna look up the number in the TM when I got home from work. Of course I forgot about it. Then I saw your post and thought to myself, "I forgot to look the number up in the TM".

Awesome, those were the kind of answers I was looking for. I'm gonna get a new key before I do this project. I'll post up my results on tracking down a key.

I got a question. Is it absolutely necessary to replace the square key when replacing the balancer?