17Sierra1500

Resurrecting this old thread. 2017 Sierra 1500 Denali 6.2. Installed RC 5" bracket / control arm drop lift kit. Having 4Auto shaking / shudder on deceleration at approximately 20 MPH. Called RC, if you ever get Bronson, I recommend you hang up immediately and get someone else. He shouldn't be in customer service. He said that is normal for all 4x4's, lifted or not. I call BS! My truck never did this before the lift and I've lifted other trucks in the past without any issues. RC's "solution" is to not run it in 4Auto or 4x4 unless you are stuck! More BS. Also said he talked to R&D and that nobody has had this issue on their kit. Even more BS. Clearly from this thread, I'm not the only one. Anybody find a replacement CV style front drive shaft for a '17 Denali 6.2?

Thanks for the replies! I ended up buying a RC "Denali / Magnaride" rear shock kit 188BOX9. It was designed to be used on as 5" lift with the OEM rear magnaride shocks. Luckily, this kit has shock extensions with an additional anchor point, as to not allow the extension bracket to pivot. Working good.

'17 GMC Sierra 1500, installing RC 5" bracket lift. Kit comes with RC N3 shocks, I don't plan to use them. I have the Eibach Stage 2 kit. Eibach rear shocks only allow for +0-1.5" of lift. I know I can use rear shock extenders like this but wouldn't that create a problematic pivot point?

Great tip on greasing the knobs! 3 out of 4 of mine are very difficult to rotate.

Thanks for replying Mike! Good to know at least someone is following along = ) I started at 4 and it was too floaty. Then went to 8 and it was tad firm for my taste. Settled back at 6 and am pretty happy. On a side-note, after putting in the Ranch Quick struts, the rear was just a tad lower than the front, about 1/2" to 3/4" so I struggled with how to resolve that. I thought long and hard about replacing the factory block with a taller one vs the Deaver mini-pack vs the RoadActive Suspension (RAS) springs. Ended up going with the RAS even though it was the most expensive option at ~$475 but easiest to install and am happy with those too. They raised the rear just enough so I'm dead level plus more controlled cornering with less body roll and I think it negated what I believe was a bit of axle wrap.

For the 3 people that are reading this, I decided to take a chance and purchase & install the Rancho RS9000 rear shocks and Quick Struts to match. The truck now sits level and rides better than when I first bought it 3 years ago, even wife agrees. No regerts. Still have the dash error for Suspension Systems needs service but there are proven options for that once it annoys me enough to spend the cash. I purchased the RS9000 rears and Quick Struts from shocksurplus.com for a grand total of $610. Best mod to date.

Long story short, I think I need to buy springs but don't know which ones to select. RockAuto has 27 different "GM Genuine" coil springs for a 2017 GMC Sierra with 6.2L engine. I am wanting to match the spring rate of a 2017 GMC Sierra SLT CrewCab 4x4 6.2L. If someone has this exact truck, maybe they could post their RPO codes please? Or maybe, hopefully, someone has a better idea to get this info? The long story (if you care to read on) is I have the 2017 GMC Sierra Denali CrewCab 4x4 6.2L with MagneRide shocks & struts. The truck has just under 60K miles and the ride quality has degraded over time. I know at least 1 shock is bad due to it leaking, no codes have been thrown on the dash. Due to the mileage and the expense of the MagneRide shocks, I am pursuing replacing them all with conventional shocks and at the same time, getting my truck level. Several options on the market claiming great ride quality but I'm leaning towards the Bilstein 5100's that I've had on past trucks or the Eibach ProTruck kit E80-23-006-02-22 for $704 that sound great too but I'll need to buy strut mounts and deal with compressing those beasts (others have had issues). Or possibly the RoughCountry E2 loaded struts #501029 - inexpensive but not sure on ride quality + reliability or maybe even Fox 2.0's if I can find them for a good price. I would even consider the Belltech coilovers #15102 for $650 /pair if I could find someone running them with a positive review. If/since my MagneRide coil springs aren't the same/compatible, with some kits including the Bilsteins, I'll need to buy new springs, which isn't a huge deal since they aren't too expensive - some as low as $34. I know Eibach's kit comes with springs included but it appears they have a higher spring rate for trucks with extra weight on the front of their trucks. Of course, I'll need to deal with the MRC electronics, cheapest I've found is https://www.magdelete.com/collections/sierra-1500 and I may end up just getting the entire kit from him but don't know which springs are used with his either... It does make some sense that there are so many different GM Genuine coil springs due to there being 3 different engines available, 3 different cab sizes and 4 different trims... I do zero off-roading or towing and am just looking for a nice street ride with a leveled look. I welcome input on anything I've said but I'm mainly looking for the proper conventional OEM spring that will match best with my truck.

I understand the tire subject has been beaten to death but please hear me out. I currently have the Nitto Ridge Grapplers in 295/55/20. They are E rated tires. I really like how they look but after running them for 2 years, they are loud and harsh in my 2017 crew cab sierra denali 4x4 6.2L . I'm looking for a quiet tire with a SL load rating, comfortable ride but aggressive look. I'll probably be going with 275/60/20 for the new tire size but also considering 285/55/20. I've been doing tons of research, reading reviews and forums but since I have no experience with the 3 tires in the poll, I'm specifically looking for people with first hand experience switching from an E rated tire to a SL / XL / P rated tire. I have also owned the Nitto TerraGrapplers and did like them ok but looking for something different. My truck is mainly driven in the city 85%, highway 10% and about 5% in the country (gravel, muddy fields, etc) while hunting a couple times a year. I also live in Missouri, so we do see some snow from time to time but that is not much of a concern with 4x4 already. Price is less of a concern but since it is relevant: Falken Wildpeak 275/60/20 - $238 each or $952 for 4 Toyo OpenCountry AT3 285/55/20 - $234 each or $936 for 4 Toyo OpenCountry AT3 275/60/20 - $266 each or $1064 for 4 Goodyear TrailRunner 275/60/20 - $156 each or $623 for 4 I'm getting old and want a smoother ride=lame. I know the magnaride is not the smoothest, I plan to see if the tires do the trick for me and if not, suspension is next. Many thanks!!

Yeah, I totally agree, recommendations?

This is the only picture I currently have - taken from a crowded garage after the rain... Plastidip does work well in my experience but removal from something like the Denali grill could be very time consuming. I opted to just replace the handles and mirror caps because they weren't that expensive from http://www.shopchevyparts.com/ Just beware that the shipping can be pricey.

Thanks, I like the black inserts as well but, given the choice, I think I may end up with something all black like the Fuel Hydro 20x9's, still making up my mind though. I like the more aggressive tread in an all-terrain. It just bugs me that my truck is 4x4 with a 6.2 V8 running on low-profile 45's and 22" wheels... I'm not into all the bling and have already changed out the chrome mirror caps and door handles for all black. Looks much better IMO. Plus, I think if I choose wisely on the tires, it will also improve the ride. First is a leveling lift though.

New to me 2017 - bone stock for now. Wheels and tires this spring/summer.