6 Degree x 2.5" Wide Shim, (DM5906) DAN706527X-HD 500" (this is the OD

500" (this is the OD of the spindle surface)

but also slight differences in tolerance that make a big difference

Overall length:  5-3/8"

Snap ring to snap ring groove:  3

6 Degree x 2.5" Wide Shim, (DM5906) DAN706527X-HD 500" (this is the ODYou've selected the 6 degree axle shim These shims are sold individually! You'll need two for a rear axle, or three (yes 3) for a Dodge or Chevy Dana 60 front axle. These axles require one on each side of the leaf spring for the perch housing because there's two studs instead of a U bolt. The shim on the other side goes the opposite direction, keeps the studs perpendicular to the spring plate, and allows the nuts and washers to sit flat. A rear axle