These Ubolt Plates are for the GM D60 Front Diff side and come with a standard width off side Ubolt Plate. The Unique Plate is 1/2" thick without bends to deal with the clearance issues it can have. The off side plate is out standard Ubolt plate design and what you need to round out the package. We have now changed these to make it easy to add another stud in the middle to add strength, they now have 3 holes on the Stud side.