just did this fix last night! ( the grease fitting one)
and so far although i havent been on the same spots where i hear the noise it does seem a bit quieter, a few more days will tell, but if not then ill just add more grease obviously,
my only question is.... because i like to understand everything i do to anything, is...
so we fill this shaft with grease, but where is this so called spline that it is lubricating? because from what i see under my hood this shaft is linked on both ends so basically all this grease is doing is filling up the hollow space???
and fyi mine is the rack and pinion steering if that makes any difference, because i saw someone mention pitman arm in an earlier post, and that doesnt apply to me
I will be doing this sometime this week!...the grease zerk one
Just performed the grease fitting fix last week - put on about 1,000 kms (around 600 mi) on the weekend, including some pretty rough off-roading and the steering clunk is GONE. I just used some Quaker State all purpose grease for my fix. Thanks to GMTC members for the fix - I will be directing my mechanic to this thread so he can help others with the same problem!
Guys, I've done a bit of research on this fix, and although it does rid your truck of that annoying rattle, it's not necessarily a good idea. Here's why: The shaft is designed so that in a front-end collision, the shaft will collapse in on itself, reducing the risk of the driver getting injured by the shaft coming through the steering wheel.
I have to admit, though, Skinner's done a great job on his how-to. I, however, won't be doing this mod to my truck. What I chose to do instead was an even simpler, and 100% FREE fix to solve the problem (at least for now).
About me, I'm Marc, I live in Denver and work for Union Pacific Railroad. I drive a 2004 Silverado 1500 Z71 with approximately 107k. I bought my truck in January of 2008 and it had roughly 45k. At around 65k, I started noticing the infamous "clunk" when turning at low speeds and thought I'd blown a CV or something worse. I took it to 3 mechanics that told me it was not anything in the front end. The last mechanic told me to look into replacing the ISS and that GM issued several Technical Service Bulletins (but no recalls...hmmm) to fix the problem. Problem was, that I was out of warranty by then and the TSB's are not recalls so you either have your warranty cover it, or your wallet covers it.
So after about 2 years and 80k, I stumble upon this forum and read with great enthusiasm about Skinner's fix and how for under $10 it really saves the day. I called a few reputable front end shops in town and ask them their thoughts on the process, and they all agreed that although it fixes the noise problem, it does, however, increase the risk of the shaft not being able to properly do it's intended job.
So I took the advice of another member here and in under 15 minutes, and for absolutely NO COST, I re-lubricated the upper portion of the intermediate steering shaft. Here's the video...
I want everyone to know, especially Skinner, that I'm in no way trying to troll or come off like a jerk. I wanted to put this out there for those that may not have the mechanical aptitude or confidence, and to inform everyone.
I have helped my father fix his on his 2003 silverado and all we did was take the steering collum apart and grease the joints and reinstall it