Its possible that there are grease (zerk) fittings already on the front LG... there are on mine, 2 on each side. Look at the top of each LG column - they weren't particularly easy to see because they were painted-over with the same black as the rest of the steel.
On the motor side on mine, the fitting was right behind the manual crank rod extension so I'm going to have to replace it with a right-angle (as opposed to using a right-angle nozzle on the grease gun - I have one of those but have never had good luck with it).
2015 Rockwood Signature UltraLite 8282WS Platinum, GY Marathon LRD, TST 507RV TPMS
2005 GMC 2500HD CCSB D/A, Curt E16, Prodigy P2, Garmin RV760LMT w/BC-20 b/u cam