Box blade

[uct]

I have an old box blade and no rippers. I want to buy some but can't figure out what holds them in. There are no pin holes near the slots but there are 2 pin holes about 1/3 in from each side at the top.

 

[RjCorazza]

A picture may help.

 

[TMGT]

Most likely uses notched shanks with a bar that has the wedges welded to it.

Thats how my box blade is. Hard to see in this picture, but might give you an idea.

 

[Roadworthy]

My rippers push up through their holes from the bottom. A pin goes through to keep them from dropping out. The pin is held in place with a hairpin clip.