I am new to the forum. Just purchased a 2003 G500 back in September. I have restored and rebuilt Range Rover classics so I am enjoying working on this Gwagen. Definitely a stronger build quality than the Rovers.
I have few questions, The truck had 146K miles when purchased, and so far I put approx 2k miles on it myself. I have done / replaced the following...
1) Crank Position Sensor
2) fuel pump relay
3) Tie rods and drag links
4) center driveshaft
5) Brake master cylinder
6) new Bilstein shocks, B6 the stiffer ones
I have noticed the following. at above 75MPH the truck exhibits a mild intermitttent vibration. I replaced center Driveshaft. Vibration still there I need to examine the other prop shafts I assume. This was an overall vibration, seat of your pants thing.
Bushings appear to be sound.
Any ideas what could cause this vibration?
After installation of the new shocks I also noticed that a vibration in the steering developed. I now have the truck up on my lift and upon inspection of the hubs I have found that the king pin bearings to be worn. There is play when manipulating the hub. The play is definitely in the king pin bearings, not in the wheel bearings. I checked my wheel bearings using my dial gauge and they were within the 0.01-0.03 tolerance, they feel good, spin smoothly, so I am assuming they are ok.
I have read in the forums and looked at the diagrams and it does appear that I can remove the hub with the CV joint and the wheel bearings as a complete unit, and still have access to the king pin bearings in the swivel ball.
My question is, given the mileage should I remove the slotted nuts and repack the bearings with new grease, or should I just keep the whole assembly together and remove it as a whole and just do the king pin bearings in the balls? As I think my wheel bearings are still sound, is there any danger to pulling them out and re-greasing them? Is it better to leave them alone?
I still have yet to replace steering damper, etc, but before I do all of that I want to get the front hubs secure.