69 Barracuda Clutch Shake Help Needed.

Do you have an adjustable pinion sunbber under there? I just added one to my dart & boy that makes a diffrence! Biyes real good now & seems to have less shuddering on take off too. My twin 10 from mcleod has a bit of chadder on take off too but still within the bedding milage now. But the snubber helped a lil for me.