Instruction Sheet 059-867-00B
(installation instructions for complete suspension kit)
- says grease once every 3,000 miles
Instruction Sheet 059-863-00C
(installation instructions for equalizers and bolt kit)
- says "Suspension Wet Bolts & Equalizers" should be greased every 3 months or 3,000 miles
I note that this hardware is being used at about half of its capacity, so lubrication needs should not be extreme.