Jump to content

I-shaft

jrrod2004

Installed new I-Shaft?  

55 members have voted

You do not have permission to vote in this poll, or see the poll results. Please sign in or register to vote in this poll.

Recommended Posts

jrrod2004 Senior Enthusiast

jrrod2004

Posted
Posted

Dealership said that they are going to replace it (AGAIN) and this will make repair # 3 to the I-Shaft. Has anyone still had problems with the new revised I-Shaft clunking and had it replaced multiple times?

Tigerado Enthusiast

Tigerado

Posted
Posted

I just had my shaft replaced for the second time on my 06 with 26k miles :smash: . This one feels much better than the old ones, but the fact that it's such a problem for so many people seems ridiculous. I expect more of GM engineering. :crackup:

omegafiler Senior Enthusiast

omegafiler

Posted
Posted

Only had the i-shaft replaced once and it did fix the issue. That was back in early Feb of this year - so far so good. But since then, they have had to replace other parts of the steering system for other unrelated issues.

TEE Enthusiast

TEE

Posted
Posted

I just had mine replaced at 53,000 miles with the NEW shaft...so far so good.

The new shaft is heavier in design but, time will tell.

Even though it was out of warranty, GM paid for the part and I paid labor (which IMHO...GM should cover that also)

I'm with ya' on a pisspoor design since 99 ? WTF

C & A s Dad Senior Enthusiast

C & A s Dad

Posted
Posted

 

 

Mine was replaced in warranty at 39K but at 57K it has begun to make a little noise again. I called my Dealer yesterday and he said they would be happy to do it again with the new improved shaft.

 

However, Dorman through their OE Solutions line has just released their re-engineered I shaft. They claim after much testing and develpoment that they have corrected the problem. They went back to the design used in the 70s and 80s using a "Double D" designed close tolerance shaft. We (CARQUEST) just received the info and do not even have them in stock yet. The part # is 425-176. They have also done the same thing for the Impala and some other GM cars that have a similar issue. I will say that everything that Dorman has provided to us through their OE Solutions line has been a tremendous hit and in every case, has solved the issues that were present with the OE designs.

 

Here is a link to their website. This does not show much about the advantages that they claim. I have a nice PDF flyer showing the side by side comparison but I am not smart enough to post it here.

 

 

Dorman I Shaft

 

I was able to download the flyer from Dorman. It is at the top of this post. This just goes to show you, "even a blind hog can find an acorn every now and then". :crackup:

jrrod2004 Senior Enthusiast

jrrod2004

Posted
  • Author
Posted

I got my truck back from the dealership on Friday afternoon, (in the shop for 3 days) and on the warranty paperwork, it states "Customer States: Clunking noise can be felt in steering wheel. Technician Found: Inspected I-Shaft, found upper I-Shaft dry". The dealership changed the I-Shaft because it was 'dry', anyone have an idea how this newly designed part could already fail?

Zembonez Senior Enthusiast

Zembonez

Posted
Posted
I got my truck back from the dealership on Friday afternoon, (in the shop for 3 days) and on the warranty paperwork, it states "Customer States: Clunking noise can be felt in steering wheel. Technician Found: Inspected I-Shaft, found upper I-Shaft dry". The dealership changed the I-Shaft because it was 'dry', anyone have an idea how this newly designed part could already fail?

I know any manufacturer can fumble the ball... but GM certainly didn't do their homework on this one. The "FIX" is apparently just as bad as the original... just a little more lube. My 05 made noise from day one until I sold it.

jrrod2004 Senior Enthusiast

jrrod2004

Posted
  • Author
Posted

I guess that I will get Dorman I-Shaft when this vehicle leaves its warranty and see how that holds up, thanks Zembonez.

Norseman Senior Enthusiast

Norseman

Posted
Posted
I guess that I will get Dorman I-Shaft when this vehicle leaves its warranty and see how that holds up, thanks Zembonez.

 

Hey, M, to give credit where credit is due, C&A's Dad was the one that gave us the great info on the Dorman Shaft.

 

But, hey you're a great guy too ZEM :thumbs:

C & A s Dad Senior Enthusiast

C & A s Dad

Posted
Posted

I just was able to put my hands on the new I Shaft from Dorman. From appearances and feel, Dorman has done their homework and has developed a really nice piece. It is very heavy and solid and when extended and contracted, it feels almost like a shock. The exterior part of the shaft that rides in the boot assy is covered with a type of hard plastic material and the inside shaft itself is really heavy and shaped like two "D"s placed back to back and has a goove cut into one of the flat sides.

 

Mine is not making any noise at the moment since I pumped it but I will replace mine with this unit if (when) the noise returns.

 

Just thought I would provide an update since I had not actually had my hands on one when I posted the link above.

jrrod2004 Senior Enthusiast

jrrod2004

Posted
  • Author
Posted

how about thanks to everybody for their input......didn't mean to misplace credit.....

  • 3 weeks later...
pm26 Senior Enthusiast

pm26

Posted
Posted
Technician Found: Inspected I-Shaft, found upper I-Shaft dry". The dealership changed the I-Shaft because it was 'dry', anyone have an idea how this newly designed part could already fail?

 

Yeah, it was made in Mexico and Pedro forgot to grease it.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,840
    Total Members
    8,960
    Most Online
    appletrav
    Newest Member
    appletrav
    Joined

  • Who's Online   3 Members, 0 Anonymous, 349 Guests (See full list)

  • Latest Articles

  • Posts

    • newdude
      2 speed transfer case optional now?

      By newdude · Posted

      This is a 1/2 ton thing ONLY.  All HDs 2020-2026 have the two speed transfer case, with Autotrac as an option.     1/2 tons 2019-2026, regular 4x4s come with a single speed case (no 4LO!), and trucks with Z71 ordered, or all Trail Boss trucks come with the 2 speed case.  2 speed case is also an option on WT, and is also standard on High Country.  
    • newdude
      Different requirements for oil filters?

      By newdude · Posted

      2013 5.3 still to this day calls for the PF48 filter.  Which as a 15psi bypass pressure.     There is a TSB, 17-NA-157 that talks about the PF-63 and PF-64 filters which have a higher bypass rating of 22psi.    TSB HERE - temp.xml   "Beginning in 2012, the oil pumps began to regulate main gallery feedback instead of pump out pressure. This means that the oil pump now does not begin to regulate until pressure is built up to the main gallery. This change reduces the amount of time it takes to provide oil to the engine bearing and lifters during extreme cold start conditions.  Main gallery feedback oil pump control systems are present on the following engine families which use Spin-on oil filters: Small Gas Engine (SGE), Large Gas Engine (LGE), High Feature (HFV6) Gen2 and Small Block Gen5 gasoline engines. These engines with the main gallery feedback oil pump control systems are factory built with an ACDelco® oil filters"   It also calls out what engines use those filters.  The gen 4 small blocks were not on that list (LMG, LC9, L9H, L92, L94, L20, L96).  Gen 5 small blocks use the higher pressure filter.          That all said...   Your 7045 Napa filter is the PF63 equivalent, with 22psi bypass.  You are already using the higher bypass pressure filter.  You CAN keep using it, you don't technically have to use it though.  
    • Grumpy Bear
      Different requirements for oil filters?

      By Grumpy Bear · Posted

      Do you know WHY the filter relief setting was increased to 22 psig?    When the new system goes into the second stage the pump volume ramps up considerably. It was found that the 15 psi filter bypass setting put the filter in bypass on a warm engine when the second stage was activated. Raising the filter bypass setting forced the filter to do what it designed to do. Filter. Preventing debris from circulating during high load, high rpm operation.    So next question is how did GM find this out? VLOM/lifter failures and a deep dive by Melling Corp.    Last question. Is it required? Look at it like this; a motor may be equipped with a rev limiter. But it only works if the set point in reached. That 22 psig setting only matters if the pressure differential across the filter media exceeds 15 psig during normal warm operation. Second stage kicks in around 3000-3500 rpm.    I can't answer your question because I don't know you and how you use the truck. But I think there is enough information here to let you decide for yourself. 😉
    • Coastie05
      give me some tips to make my truck look better

      By Coastie05 · Posted

      Go back to OEM wheels. 
    • newdude
      2020 Trailboss 6.2 replacement

      By newdude · Posted

      Probably not their first rodeo, so it should go as planned most likely.  Typically the service manager or tech doing the swap will put some seat time to shake it down after they get it all put back together.  We usually put 50-100mi before we hand them back so if something happens, its not after you get it.  A coolant leaks, oil leaks, a ground left off or loose, vibration, etc.     The new engines so far have been good?  There's been a couple that have popped out there again (the replacement engine) but most have been okay.  

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...