This U-joint has two cups that mate with the L600 series yokes and two cups that fit the Spicer® 1000 series yokes
This is very handy if the user wants to convert from the L600 series over to the more commercial Spicer® 1000 series.
This allows a user to tie into, or couple their existing L600 equipment and gain access to the wider parts selection offered by the Spicer® 1000 Series PTO product line.
For an online PTO identification/selection tool, please click this link to access Neapco's online database
Neapco Agricultural PTO Catalog