Jerry
I believe these are the standard Crusader Engine mounts. I think this is the piece you need.
Engine Mount - Diesel
Two Mountings in same casting. Increased capacity for Diesel and Heavy-duty applications. UP TO 650 LBS.capacity. Base is 12” x 3-3/8” wide. 2-1/2” from bottom of mount to lowest adjustment point. 4-1/2” from bottom of mount to top of 3/4-16 studs.
BUSDF-242
Scroll to Page 192 (lower left corner)
http://www.marineengineparts.com/20%20engine%20&%20transmission%20components%20page%20176-193.pdf
You may also need this, minus the Bolt, I am sure a Crusader dealer could set you straight.
Cut and Paste the 2 links into web address.
Rob
The Eagle's Nest
Annapolis MD