Okay, something I missed here. What is the object of using a flush fitting that needs a needle adapter? What is wrong with an ordinary grease zerk? I've done 2 of these now and the grease zerk seems to work just fine.
One observation on the '06 model I did a couple days ago. This Jeep has about the same mileage as mine, 20K plus or minus, and was built the same month, 8/05. Both are Rubicon LJ's, his has an auto, mine is a 6 speed. Mine had a noticeable less amount of wear on the gear. The shaft looked the same on both. I don't think his gear is shot and we re-used it, but mine had less wear. I use Mobil 1 High Mileage 10-30 and Donaldson 50299 filters for a 7 quart oil system. I change my oil once a year whether it needs it or not. He takes his to Jiffy Lube type places and has no idea what oil is used. Looking at the gear made him a convert.
2006 Solar Yellow Rubicon Unlimited
Jeep Club Member #1340
6 Speed, Hardtop
Mods done: Hurst tee handle, cheap hand throttle, Rokmen Merc front bumper, Warn 9.5 TI winch with 3/8" X 100 worth of Viking yellow rope, DPG OME Ultimate with JKS ACOS up front, Kilby Gas Tank Skid, Kilby Steering Box Skid, Jeep Medic Belly Up, Skidrow Engine Skid, Rockcrusher Diff Skid in the rear, Warn Diff cover in front, , AR Outlaw II's and MTR 12:50/15's, Homemade rear Bumper, Cheap Cobra CB, Puma OBA, Sirius Radio, Locker Defeat, Rockhard cage, Rockmen short corners, homemade tire swing/tailgate hinge affair, Airlift air bags on the rear- - - - - - and more to come!