The compatibility chart says they don't....
Center bore should be 66.5, so I imagine you could get away with 6.6...
The lug holes are 14mm though, and pretty sure your 85 has 12mm bolts.
I have a set of (4) 5mm H&R spacers that I never used.
Went to a wider set for my 83 SD (12mm).
Love the fit of the H&R's, and I've had no issues with them.