Hi Matt,

There's no doubt that you'll get more consistent and accurate results with a balancer . If I'm not mistaken , most of the kits are leaving Wren pre-balanced on their machine . I think the slight interference fit between the shaft and the compressor takes out some of the variability that can happen to the balance when the compressor is removed.

I'm quite certain that Hal will have very good results by just putting the new compressor on and running the motor. In the unlikey event that there are vibes , he can then send it out for machine balancing.

Are you making it out to FJ 2005 ?

Marc