4emeryj44

I currently have a 2016 GMC Sierra CCSB 1500 Z71 5.3 w/ 6L90 transmission. It currently has a 4.5" CST lift kit with 35" tires, and yes I do off road the truck and go on some fairly difficult Jeep trails. So after this last trip off road I noticed a definite clunking/popping sound coming from the front end, I had noticed it before a couple months prior but it seemed to have gone away. I had the kit installed a 4 Wheel Parts in Virginia Beach, being that I purchased the warranty I took it to them to look into the issue. They called and told me the passenger side steering rack bushing is cracked/broken/separated (honestly cannot remember the exact term they used, but regardless it's out) and that GM doesn't allow for the passenger side to be replaced, but yet the driver side can. With that being said, that means that the entire steering rack requires replacement which is not covered under warranty (BTW I have 50,XXX miles on the truck). I cannot bring myself to comprehend a bushing that cannot be replaced, and I can't seem to find anything on the internet about this, which is a first!!!!!! I am going to the dealer tomorrow, I know the guy that runs the local dealer and he is going to run my vin into a "customer loyalty program" to see how much of the total cost the dealer would cover based on how much money I've paid the dealer in oil changes/fluid changes, maintenance, etc..... Can anyone provide me information on that passenger side bushing? Why is it not replaceable? Is it due to the location of it on the rack? Is it a pressed in bushing or somehow integrated into the rack making it not replaceable? Is there anyone that would suggest a better aftermarket rack that would be similar in price but more durable? Anyone know of some modification to where you can somehow get the old bushing out and replace it with a new? There has to be something. How can I justify in my own brain to replace a perfectly good steering rack (approximately $2,000.00) for a bad bushing?

Not even close IMO this is right tire/wheel at full left crank This is left tire/wheel at full left crank

I honesty didn't look, but I couldn't see any rubbing anywhere when I was looking for wheel well rubbing. Tomorrow I'll take a look and double check for you I honestly doubt that rough country would put out a tire size for a stock wheel configuration that would even come close to rubbing any major suspension components.

No rubbing whatsoever!!! Parked I did full lock to lock and I had an index finger between tire and wheel well liner. I was thinking about going with a 295 but I called rc and they said trimming would be required and also the place I took the truck to to install lift said they wouldn't recommend anything larger than a 285. I'm very happy with the end result and glad I didn't go with a 295. It's The perfect tire size for this truck

I went with Rough Country 2.5" Leveling kit, reason is because I read a lot on this forum and seemed like it was the most reliable/popular for these trucks to level it and to allow for larger tires and ground clearance. Rough country had great support when I called about questions on tire sizes. I have the steel front suspension not the aluminum, but they have 2 different kits depending on if you have aluminum or steel control arms. Stock before lift After lift tires not installed yet Toyo Open Country R/T's 285/65/R18 Install and tires complete Putting truck to good use!!!!

Trust me I know what you are dealing with. It's not an oil issue, it's not an air bubble issue. It's a combination of a mechanical/programming in the TCM issue. Either one or the other or both. Email that person I gave you the contact information for, and they should take care of you brother. The slamming is not normal, I questioned myself as to wether it was normal for these transmissions to do what it was doing in our trucks and finally I got enough confirmation that it wasn't. I completely agree as to the fact this isn't the issue. After the one trip doing the transmission fast learn to adjust the clutches that were causing the harsh shift and that didn't work, straight up valve body and TCM right from higher up GM. I think they know that they are some harsh shifting transmissions out there and now they are realizing they actually need new parts or a new TCM

please read my thread completely, it has all the info on what the dealership "actually" did, there is the transmission fast learn, there's a relearn procedure, and now they've determined to replace the valve body with TCM. So "airbubbles" has nothing to do with it. Just make sure you get EVERYTHING documented, and ALWAYS ALWAYS take the transmission tech or lead tech with you on the drive and show them what it's doing. At this point, like I mentioned when I PM'd you, deal with the GM Executive Liaison, whose contact info I gave you and go that route.

Brand new and Stock (for now)