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Best aftermarket side steps for a GMC Sierra Denali?

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I recently treated myself to a new Sierra Denali, and while I love the truck, the stock running boards feel a bit basic. I’m looking for something that matches the premium look, ideally with a nice finish that complements the chrome trim. I’ve been leaning toward the AMP Research PowerSteps to keep that clean profile when the doors are shut, but I’m a bit concerned about how the motors handle heavy ice and road salt during the winter. Does anyone have long-term experience with those, or perhaps a high-end fixed step that doesn't sacrifice ground clearance? I want something durable that won't rust out in two seasons. What aftermarket steps are you guys running on your Denalis for the best mix of style and function?


7 Answers
18

yo! i literally just went through this! honestly, i think the AMP Research PowerStep Smart Series is the way to go, cost me about $1,800 and they look AMAZING. if ur worried about salt, just spray the hinges with lube sometimes... takes 2 seconds. if you want fixed ones, maybe check out Go Rhino RB20 Slim Line Running Boards? they’re cheaper and wont break. i LOVE the power steps tho, soooo sleek! gl!


14

Respectfully, I'd consider another option. Tbh, I spent weeks doing market research and I'm honestly so disappointed with how power motors handle salt.

1. **The warning**: Moving parts seize up way too fast in winter, regardless of the brand.
2. **The fix**: Look at high-end fixed stainless steps from brands like Westin or Luverne.

Lesson learned: dont sacrifice reliability for that clean profile, because a stuck step looks wayyy worse!!


13

Commenting to find later


11

Basically, any moving parts under ur truck are gonna fight the salt and ice. When slush freezes, it creates crazy resistance on those motors. In my experience, linkage is gonna seize up eventually no matter what you spray on it. I once had a set freeze mid-deploy during a storm... realy annoying. Honestly, I prefer a high-tuck fixed setup now. It keeps that premium look but is way more durable for winter driving.


9

+1 to what was said earlier! Moving parts in salt are basically a nightmare for safety. Honestly, I've had trucks for years but I'm kinda new to these specific mods... but I've seen way too many frozen steps!! If you want reliability on a budget that matches your chrome, check out Ionic 5" Stainless Curved Nerf Bars. They're around $300 and super solid.

* Zero motor failures
* Stainless steel won't rust
* Save $1500

Seriously, save the cash! Love the Denali!! 👍


6

Basically, any moving parts under ur truck are gonna fight the salt and ice. When slush freezes, it creates crazy resistance on those motors. In my experience, linkage is gonna seize up eventually no matter what you spray on it. I once had a set freeze mid-deploy during a storm... realy annoying. Honestly, I prefer a high-tuck fixed setup now. It keeps that premium look but is way more durable for winter driving.


2

Tbh this whole thread reminds me of my old 2015 Sierra. I had steps on there for like five years and one day they just stopped moving altogether. I spent the entire weekend under the chassis with a headlamp and a socket set, thinking the motor had finally kicked the bucket because of all the road salt we get up here. I even ordered a whole new assembly before I realized my nephew had somehow managed to jam a plastic toy dinosaur into the linkage while I was washing it. Spent three hours swearing at a piece of plastic. By the time I got it out, I had already stripped two of the mounting bolts and had to tap new threads anyway. Just a massive ordeal for nothing. Sometimes it isnt even the weather that gets you, just life being weird... I still think about that dinosaur every time I hear a motor click now.


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