How about rippers?

[olrobk]

I think a ripper sounds like a great addition to the back of a loader but it requires lots of traction from grousers. It would seem to me that since a dozer has higher grousers, it would be much better suited to drag five pick axes through the ground.
Any experience or opinions on this?

[Lavoy]

Given the increased operating weight, a loader will out pull a dozer in most conditions.
Lavoy