A top link (16) for a tractor front counterweight (10) support linkage. The link is a fixed length elongate body having at a first end a pivoting connection (30) with a chassis of the tractor and at a second end a slot (28) to slidably receive an attachment bolt connectable to a tractor front counterweight. The link further comprises means to selectively permit or prevent sliding movement of an attachment bolt received in the slot (28).
