Take a look at the webbing around the cover. On the right hand side on the bottom are cast numbers protruding out. They say 60 for the D60 and 44 for the D44. Another way to check is, look on the pumpkin (passenger side) and inspect the spring pad. There should be two holes in the cast part of the pumpkin. This is where the two studs, or bolts, go to hold down the u-bolt plate. A D60 only uses 3 u-bolts. Last, check the knuckles. Each top and bottom of the knuckle plates are held by 4 bolts. This cant be confused with a D44 which uses 1 big nut to hold the ball joint together. The plates on the D60 knuckles are rectangle shaped.