#1 is by far the most popular indicator, passenger side. I would consider this a 10:00 location.

 

Here you can see the #2 indicator. Again a passenger side location. I would consider this a 11:00 position.

 

Now #3 indicator is a very rare indicator. It is a driver-side location.

 

Here you can see the #2 indicator in use on the passenger-side location.

 

#3 indicator in use; driver side.

 

Three different balancers. All are the same length, and all have the same imbalance.

 

Balancer style 1&2. You can see the timing marks and the yellow mark on the seal surface: the key way.

 

Balancer style 3. You can see the timing marks and the yellow mark on the seal surface: the keyway.