On the topic of rear suspension... Should any parts of the ride height components be lubricated with something like WD-40 or Lithium spray? I've used my GMC few times this winter (as luck would have it - during the absolutely worst winter storms). I'm going over it and getting ready for summer. Poking around the rear wheels I wanted to make sure I'm not missing anything besides boggie pins as far as lubrication goes. I have a Quad bad setups if this helps.

NextGenGMC wrote on Wed, 08 May 2019 00:30

On the topic of rear suspension... Should any parts of the ride height components be lubricated with something like WD-40 or Lithium spray? I've used my GMC few times this winter (as luck would have it - during the absolutely worst winter storms). I'm going over it and getting ready for summer. Poking around the rear wheels I wanted to make sure I'm not missing anything besides boggie pins as far as lubrication goes. I have a Quad bad setups if this helps.

Vadim,

First, I openned a new topic so this would not get lost. Topics are cheap.

Second, WD-40 is not a lubricant. So says the manufacturer and I have experience that confirms this. It may, in some cases, behave like a penetrant but that is just a happy accident. WD-40 is and was designed to be a drying agent.

Lastly, there are no external parts of the ride height control that require regular lubrication. Here, WD-40 might help, but just to reduce the corrosion of the metal parts, but it may also injure the rubber bushings in the control link, if they still exist.

Matt