Urgent set up help needed for CGM
My son's racing his CGM at the Nats this week and during practice the car has developed a bad off power looseness in the rear. He's tried different set up changes but it's not responding.
I don't have all of his set up info but he is using a spool made with sandpaper between the diff rings. The car has been fine at our local asphalt track with this arrangement.
Appreciate any help. Thanks.