U-bolt, std, front or rear, MB GPW. This item is supplied as you receive it. You may need to chase the thread further to suit your application.
Early to standard Jeeps - started with 8 leaf on the front and went to 9
Late were mostly 10
Rear's often had 9 leaf then went to 10.
Your vehicle may have a "after market" spring leaf or pack which could alter your situation again.