Saw your photos below of you old girl with a JD head on it...
I put a Massey on my 106...
checking the header fit on the top brackets
<a href="http://s559.photobucket.com/albums/ss34/farmeroli/farmeroli%20fixes/?action=view&current=100_2827.jpg" target="_blank">
</a>
the top brackets
<a href="http://s559.photobucket.com/albums/ss34/farmeroli/farmeroli%20fixes/?action=view&current=100_2823.jpg" target="_blank">
</a>
and the jackshaft, newly made and slowed down wobble box drive pulley
<a href="http://s559.photobucket.com/albums/ss34/farmeroli/farmeroli%20fixes/?action=view&current=100_2832.jpg" target="_blank">
</a>
I put a Massey on my 106...
checking the header fit on the top brackets
<a href="http://s559.photobucket.com/albums/ss34/farmeroli/farmeroli%20fixes/?action=view&current=100_2827.jpg" target="_blank">
the top brackets
<a href="http://s559.photobucket.com/albums/ss34/farmeroli/farmeroli%20fixes/?action=view&current=100_2823.jpg" target="_blank">
and the jackshaft, newly made and slowed down wobble box drive pulley
<a href="http://s559.photobucket.com/albums/ss34/farmeroli/farmeroli%20fixes/?action=view&current=100_2832.jpg" target="_blank">