The factory upper shock mounting holes were too small and had to be drilled out to 3/8"
Before
After
This is with the upper mounts all installed. Follow the directions for the A Body mounts because the stress the fact to be sure to mount the bolts from the bottom up!!!. Ridetech supplied 1.25" long bolts but like the shock bolts I went with a little bit more thread engagement and got 1.5" bolts.
