Chad2815

Driveshaft doesn't help much with vibration, at least it didn't for me.

200 shipped

Bump 250 shipped

Still have the box and all cables. Got my 17 dyno tuned and no longer needed. Great for turning off AFM and the canned tunes are pretty good. Works on 17-19 for sure, not certain about newer. 285 shipped.

No problem, its easier to talk with him through text. If you want to go the handheld route I have a Hypertech Max Energy 2.0 that Im going to be selling soon. Let me know either way.

No I did not.

Dkgoodrich.com in Frankfort KY. He does HP tuners and really knows his stuff.

Yes it has happened to me. There are two variations of the shakes. The one that the flush helps is if you see the rpm needle moving at cruise. The other one is at cruise and I think its the TQ converter locking up and trying to hold the gear. I am far from a mechanic but I have read and contributed to the the nearly 900 pages of the shakes on this forum. I dont mean to be a downer on these trucks because I still love them but I feel like someone should let you mnow what your getting into. Handhelds cannot do anything to the tcm and thats where the troubles at. You have to mail the tcm off to hp tuners ($217 with shipping) then pay for 8 credits to tune ($400) and then find someone who can do it. I found and awesome guy here in KY who did it for $600 which included 4 hrs worth of dyno runs and tuning. Mine is ALOT better but we are still going to do some interstate driving while he tries to figure out what its doing. The dealer will hit you with a flush and quick re-learn for the clunk and the drive home will be awesome but unfortunately these things re-learn fast and the 3-2 and 2-3 clunk will be back. Sorry I know this is alot of info but I think it will help you make a decision.

It does for about 1000 miles and then it comes back. I would look for a 10 speed truck, haven't heard of the issue with them. Sorry I just cant imagine buying it knowing that the shake exists and waiting for it to reappear. Find someone that can tune it or I promise it will shake….and clunk.

Tune is the only thing that will fix both….many have tried and failed. Sucks because they are awesome trucks but GM tuning is pathetic.

I have had a 2014 bought back due to shakes and I’m in a 2017 now that has had the transmission tsb done 4 times, about 10 re-learns, aftermarket driveshaft, about 500 dollars worth of alignments, tried the spring clamps, rain danced and all kinds of other wastes. Finally I found http://www.dkgoodrich.com/contact.htm in KY. He did a dyno tune with HP tuners and so far the shake is 96 percent gone. So is the annoying downshift clunks that are embarrassing when driving passenger who thinks your u-joint just went flying. If your around KY you really need to give DK a call. Save yourself the agony of trying all that other bs. If it shakes and clunks find someone near you to tune it. None of the handheld stuff can get close. I know firsthand how bad it sucks to be unhappy with a shaky and clunky truck. I cannot understand how GM send these vehicles out to customers with such a garbage tune on them.

I have no idea....Black02Silverado could probably answer the spec stuff better. What I do know is my 8 speed had been flushed 3 times with the “new” mobil 1 stuff and all of its bad manners returned after about 3 thousand miles each time.I finally found a dealer that was useful and they did a quick re learn and then I had the fluids swapped and it worked for me. Before doing this it was embarrassing to have passengers because it sounded like the transmission fell out every time I slowed down to a stop.

Flush with Amsoil ATF, worked wonders for mine. Still get the clunk on the initial start and takeoff but it the clunks have been 90 percent eliminated.

Ahh just a creative bump for a good cover.....have the X2 on my 17 for over 4 years now and its been a great cover good luck selling.

Seriously? Never heard the Warrant Officer insignia being called a squash bug?

Squash Bug sighting!

The Amsoil ATF really helped mine alot. Had the tsb done 3 different times and finally pulled the trigger on Amsoil and did a complete flush. I also replace the tc and plan on doing both diffs in the future. My recommendation would be having the dealer do a quick learn as well.

Are your rpms fluctuating while the truck vibrates? The flush fixes that but if your still getting a slight vibration and clunk you could try a flush with amsoil atf. Thats what I did with mine and it has worked wonders so far.

Mine doesn't seem to do that. It does have a little float on the highway which I like, really makes for a smooth ride and then tightens up going around turns. Maybe thats what your experiencing? The magnetic ride isn't for everyone but I really like it. How many miles are on it? Check and make sure the shocks aren't leaking.

I have had mine drained and replaced 4 times and the shudder always returns after about ten thousand miles. I am about to replace with AMSOIL and add 20 ounces of the shudderguard additive below. I will let everyone know if it helps. Mine only has a very slight shudder around 80 mph when cruising. Its seems that the shudder guard is added protection and I am more curious than anything. A dealer in KY did a quick relearn on my 8 speed and it really helped the 1-2 bang shift so if I can just get the shudder fixed I will be thrilled. GM-8-speed-shudder-flyer_all_sizes_2.pdf

That 10 inch looks good. I thought about doing something similar but got scared off by the active noise canceling in the 6.2 and the factory bose sounds pretty decent.

Same guy gave us all grief for trying to get the dealer to fix our clunky leafs and then makes a post asking about part numbers when he takes his to the dealer for...............you guessed it clunking leafs. As far as the 8 speeds, thats the first I have heard of complete failure like that, maybe you can get some help from GM since they know these trannys have alot of known issues.

I have for sale a device that allows you to mirror your iphone and use video in motion (for offroad use only of course) in your 2017-19 Sierra. It should work in the Silverado as well, the device is from MVI inc and they are awesome to work with. I am looking for more functionality so I thought I would throw this one up on here. It works great for mirroring hulu, youtube, prime video and the only issue it has is with netflix. You have to download the content and then view it for netflix. It comes with all connections needed for any iPhone with lightning cables. I cannot verify anything with android because I have never tried. I have included a link to a setup similar to this one, but this one already comes with all the connections needed. Shoot me a pm and I can send a video of it in operation if your interested. I am selling this for 350 shipped obo. You can also plug in any device that uses hdmi such as firestick/roku or apple tv. See the link below https://www.gm-navigation.com/shop/video-input-module-2/

Came across this, let guys that are smarter than me make recommendations. I have a 2005 Accord with 178,000 miles on it and used this stuff and it worked great haha. GM-8-speed-shudder-flyer_all_sizes_2.pdf

No I don’t, took mine in for the coasting clunk and they told me there was an ECU update that they completed and it really helped.