ahartzell2020

Here are some after pics Minimal trimming, no rubbing at full lock but it is within finger width of soft liner near front bumper. Sent from my iPhone using Tapatalk

Yep! I’m with you. I was VERY picky so I got lucky the shop had them in stock. And I made sure the offset would work with lift and also was as tucked in as possible. My options came down to: (1) stock rims and 11.50 wide tire (2) stock rims, 12.50 wide tire, and large spacer (3) new rims, 12.50 wide tire I wanted 12.50 wide and didn’t want spacer so the decision was pretty much made for me. After all is said and done, it will be the Cognito 3” elite level with 2.5 fox resi shocks, 20x9 Fuel Covert in matte black with 37x12.50 ridge grapplers. Sent from my iPhone using Tapatalk

Just talked to the shop again. I’m going to put on 20x9 fuel rebels or coverts and 37x12.50x20 nitto ridge grapplers. Don’t want to do spacer or a thinner tire (unless 37x11.50 looks ok). Sent from my iPhone using Tapatalk

Will do! Running into some issues already. Per Cognito: the leveling kits allow max of 12” tire on stock rim (so only XXx11.50) or you have to get a 9” wide wheel with 0 offset to fit XXx12.50. Sent from my iPhone using Tapatalk

Well I’ll let you know next week! I called a bunch of places (because everything including lifts and tires are on back order) and I finally found a really reputable shop that had the cognito 3” elite leveling kit and tires in stock. Going to try both 35s and 37s to see what fits without rubbing and what looks best. Sent from my iPhone using Tapatalk

Plan A: use stock AT4 rims Plan B: Fuel Rebel 20x9 +1 offset Plan C: get 5” zone lift with fox shocks and then plan A or B [emoji23] Sent from my iPhone using Tapatalk

I’m getting a 3” RC lift/level and vertex shocks installed on my 2020 duramax. I want to keep the stock AT4 wheels. I’m getting lots of conflicting info from what I can run without rubbing or trimming. I’ve seen people running 35x12.5x20 stock but lift guy is saying he’d still go with 35x11.5x20 to prevent rubbing. But I’ve also seen people running 37x11.5x20 on leveled trucks. Bottom line is I want a “stuffed” look similar to the posted pic and I don’t want rubbing at all. Does anyone have a similar lift and tire combo that could share experience? *pic not my truck. According to caption it’s “leveled with 37s”* but this is the look I’m going for. Don’t like the tires sticking outside fenders and I don’t want them looking too small for the truck after it’s lifted. Sent from my iPhone using Tapatalk

How easy is it to swap the 2? That makes way more sense than the way GM has it set up. Sent from my iPhone using Tapatalk

Am I missing something? I went to hook up a small trailer to my truck yesterday and it had a 4 pin connector for lights. The bumper had 2 camera hookups, a 7 pin, and spare lock. Inside the bed was another 7 pin and finally a 4 pin. To me a 4 pin inside the bed doesn’t make sense, but why isn’t there one on the back bumper? Is there an adapter I misplaced somewhere or does GMC expect me to go purchase one? Sent from my iPhone using Tapatalk

Absolutely! I’ve already been chatting with 2-3 Banks people over the weekend. I ran derringer lvl3 and PM sport lvl5 all weekend. Not a single issue and wow the power and throttle response! Will update more if there are issues. Sent from my iPhone using Tapatalk

How would I be able to tell short of taking to dealer? Sent from my iPhone using Tapatalk

Had about 8mo and only about 6,000 miles on it. Sent from my iPhone using Tapatalk

I feel like my duramax has mini regens and full regens lol. 4-5 times since owning the truck I’ve noticed what’s described above: odd burning smell. 2 times I’ve noticed what I think is a true regen: drop in power, drop in MPG, and when I get on the accelerator during this, it sounds like an f16 is in my truck bed. Sent from my iPhone using Tapatalk

Just installed derringer, pedal monster, and iDash on my 2020 L5P. It’s pretty insane now. I’ve only driven maybe 2mi since installation and I have one concern. I pulled out onto highway with derringer at lvl6 and pedal monster at track lvl10. Did great. Then while cruising at 50mph, I mashed pedal to the floor and the truck didn’t much except fumble between gears violently. Scared me so I let off pedal and just drove home gingerly. Anyone have issues with shifts after derringer? Sent from my iPhone using Tapatalk

Just installed derringer, pedal monster, and iDash on my 2020 L5P. It’s pretty insane now. I’ve only driven maybe 2mi since installation and I have one concern. I pulled out onto highway with derringer at lvl6 and pedal monster at track lvl10. Did great. Cruising at 50mph and mashed to floor and the truck didn’t much except fumble between gears violently. Scared me so I drove home gingerly. Anyone have issues with shifts after derringer? Sent from my iPhone using Tapatalk