Originally posted by TAW
I have a strange problem, the grub screw in my ball diff will not tightnen down against the adjusting screw. This has me quite puzzled, the screw is not stripped nor are any other parts damaged. Matter of fact I had a new ball diff in the package for my Impulse so I put it together and it has the same problem. Please tell me I am not going nuts and this is normal. Although I could swear when I put the car togehter I tighned up.
What made you to come to a conclusion that the grub screw was not tightened? Did you face the problem with the diff slipping after you manually adjusted it "externally"? I don't know how you tighten yours but while you tighten the grub screw, you need to put the steel pin through the holes at the same time on the other side of the diff to lock the adjusting screw.
I just rebuild mine this afternoon before I went out to race the car. I actually wanted to test out if the fantastic tip that was posted that not too long ago in another thread
that would enable the ball diff to be adjusted externally would work for me. The problem was that I forgot all about adjusting it externally because I was having too much fun racing the car
Next week on a larger track, I'll try to adjust the ball diff for tighter setting externally and see if the ball diff will hold its settings without the grub screw
When you follow the tip, you do not have to worry if you had tighten the grub screw. You do not even need the grub screw
The tip by applying some loctite to the threads of the adjustng nut makes the grub screw redundant.