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STX30MAC

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About STX30MAC

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    STX30MAC
  • Birthday 12/11/1978

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  1. 6in BDS 35x12.50 Nitto RGs Stock 20s no spacers RC Vertex coil overs Fox rear shocks Sent from my iPhone using Tapatalk
  2. Had my 11yr old ride in the back today and asked him if he could feel it. He says “absolutely, that’s annoying Now I feel it every time but I found what’s rattling. So he stopped the rattle. I experimented in L1 today. Got up to 2500rpm then let it slow itself down. Once it gets below 5mph it feels like it down shifts and let’s loose. But of course that can’t be right it’s in 1st gear. Weird thing was that after driving In Only first gear for a while then going back to normal drive it seemed to rumble a lot less. Maybe getting the rpms up in first and second gear will open up whatever’s sticking on the down shift. I have not heard back from my service tech yet if they have had any others in the shop for this. I will call tomorrow. Sent from my iPhone using Tapatalk
  3. I called my local dealer this morning to see if they have had any other reports of this happening and if they have found a fix. Waiting for the call back. I have a lift and I am wondering if a speedometer calibration (Hypertech in line) would have an effect on it since my tires are over sized from the stock version. I feel like it did it before the lift but that was 8k miles ago and I cant remember. I will keep posting updates on here as I get more information. Hopefully it will draw some attention from others that have the same issue to post their fix or how the dealer fixed it.
  4. I have this issue as well. 2019 Sierra SLT 6.2L 10spd. Thought it might get better with miles. Nope. Does it every stop. I am going to try the neutral stop tomorrow. I took it to the dealer at 6k mikes they said they don’t feel it. Even my buddy that sold me the truck says he can’t feel it. Same deal as everyone else. You can’t always feel it but you can definitely hear it. I’m over 10k miles now and still does it. I did notice today that if I take my foot off the brake and don’t hit the gas it rolls forward as if my tires were oval. I have had a 6in bds lift since 2k miles and figured the dealer would just blame the lift. I hope someone finds the answer on this post and I will let dealer know. Shifts great accelerating. Sent from my iPhone using Tapatalk
  5. I have fox 2.0 on rear. Not a fan. No adjustability and there coil over reservoir are to pricey for me. And they are not available. Sent from my iPhone using Tapatalk
  6. They released them with the 6in RC kit for 19s. It has them as an option to add. https://www.roughcountry.com/gm-suspension-lift-kit-22930c.html Sent from my iPhone using Tapatalk
  7. I want to get the RC Vertex coil overs but I am on a 6in BDS lift. Would anyone know why they would not fit or align correctly? The RC 6in kit with the Vertex coil overs does not show new UCAs just knuckls.
  8. My 6.2L with 10 speed does the same. slowing from 55 there will be a gear vibration I can only feel int the brake pedal then it goes away and has a good vibration before shifting into 1st gear (you will feel and hear the rattle) with a push. Depends on the stop though. real slow stop I barely feel it. Firmer stop its more pronounced and will sometime give a pretty good push/kick after the vibration as it shifts into 1st. Had 4 people at the dealer drive it and all said they couldn't feel it. I still feel it every stop. I have a 2015 Yukon XL with 6.2L and the trans sucks on it but I do not feel anything when slowing to a stop. I have tried driving in sport, and tow mode. no change. Tried all with out traction control as well. I keep thinking it will go away. its not getting worse but not getting better either. I do have a 6in lift with 35s but I am sure it did the same when it was stock, it was just harder to feel. Just rolled 8k miles. 6k with lift.
  9. Which magnaflow did you go with? Did you leave the front flapper? Do you have a video? I am really just looking for a little louder on start up and when you get on the gas. I don't really want to hear it on the highway.
  10. Took the lower valence off then trimmed the corners off the large valence. Had to trim the mud guard behind front tires pretty good. Still rubs the front wheel well front liner at full lock in reverse. Turning quarter turn into a steep drive way and they will hit the back wheel liner pretty hard. but its just for 1/2 a second. Still want to get some 20x9 +0 black machined wheels. should push wheels/tires out 2 inches from where they are at now. then I will have to trim some in the front wheel well back.
  11. 37s won’t fit on the GMC with 6in BDS. Silverado only according to the website. These 35s still hit the back of wheel well when 1/4 turned hitting good bump. I like the height and still rides good but I would like the tires to stick out some. Ordering 20x9 with +0 offset soon. Will probably rub more on the back once I do this. It puts the back spacing out of the BDS fitment by .25in. Also want to move to a full coil over and rear reservoir shocks. BDS kit uses factory control arms and spacers. Sent from my iPhone using Tapatalk
  12. Yes 6in BDS with stock 20s with 35x12.50 Nitto RGs No spacers. Rubs a little a full lock in reverse Sent from my iPhone using Tapatalk
  13. 2019 SLT X31 6.2L 8k miles 6in Bds on stock 20s with 35x12.50 Nitto RGs Awesome truck Sent from my iPhone using Tapatalk
  14. 6in BDS 35x12.50 Nitto Ridge Grapplers 20in factory wheels Sent from my iPhone using Tapatalk
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