Hi there! I totally get where you're coming from. When you start messing with the suspension on a heavy-duty truck like the Sierra 2500HD, it’s easy to end up with a ride that feels like a brick.

> I’m stuck between going with a full suspension system or just high-quality torsion keys and blocks.

In my experience, since I've been learning more about these setups, you really want to be careful with just doing keys. See, when you crank up the torsion bars, you lose your "down travel," which is why the ride gets so harsh over bumps. For a daily driver that still hauls heavy loads, I would suggest looking into a high-quality leveling or small lift system that actually corrects the suspension geometry.

From what I know, the Cognito 3-Inch Performance Leveling Kit with Fox 2.0 Shocks is basically the gold standard for this. It includes new upper control arms (UCAs) which are super important because they fix the ball joint angles that get stressed when you lift the front end. Honestly, if you just go with ReadyLift 3-Inch Stage 2 Lift Kit, make sure it includes those shock extensions or longer shocks so you don't bottom out.

I’m still a bit of a beginner when it comes to the actual install, but I've seen that the Fox 2.0 Performance Series Smooth Body Reservoir Shocks really help soak up the chatter on the highway. Just make sure to check your CV axle angles after... anyway, back to your question, definitely go for the full system with UCAs if you want to keep that smooth ride! Good luck!

Great info, saved!

Quick question—are you planning to run a heavy bumper or winch up front? I've found that budget-friendly ReadyLift 3" SST Lift Kit 44-3100 torsion keys work great for daily driving, but they might sag if you're hauling serious weight. LMK!

Just saw this and figured I would chime in from a budget DIY angle. If you want that 3-inch height without the premium tax, you should check out the Rough Country 3-inch Bolt-On Lift Kit with V2 Monotube Shocks. The V2 shocks are way better for towing than the base models and they wont break the bank like some of the high-end kits. Technically speaking, you really just need to focus on your shock travel and UCA angles. If you wanna save even more, you can piece it together yourself. Grab some Supreme Suspensions 1-3 inch Front Leveling Kit Adjustable Torsion Keys and pair them with Bilstein 5100 Series Monotube Gas Shocks. It is a solid setup that keeps the ride firm but not bouncy when youre hauling. Total cost is usually way lower than those big name stage kits. Just make sure you get a proper alignment right after or youll eat through your front tires in a month.

Respectfully, I'd consider another option before jumping into a basic key and block setup. Honestly, just cranking up the torsion bars or using keys often puts the upper control arms at a really sketchy angle, which can lead to premature ball joint failure—definitely not what you want when you're hauling heavy loads!

I’ve seen much better results with the Cognito 3-Inch Performance Leveling Lift Kit with Fox 2.0 Shocks. It actually includes corrected-angle upper control arms to keep your geometry safe and maintain that factory ride quality. If you're worried about the rear sagging during towing, I'd suggest skipping blocks and looking into Air Lift LoadLifter 5000 Air Spring Kit instead. It gives you the lift you want but lets you adjust the stiffness depending on your trailer weight. Anyway, just my two cents on keeping things safe and reliable! Let me know if you have questions about the install.

Honestly been there done that with the driveway install and let me tell ya it was a whole thing lol. I’m definitely a DIY guy but there’s some stuff I wish I knew before I started ripping my front end apart on a Saturday morning thinking I’d be done by lunch and boy was I wrong... - First off that torsion bar unloading tool is no joke like seriously dont try to use a regular big C-clamp or some other janky thing because those bars are under so much pressure its actually kinda scary if it slips and things go flying
- I totally messed up by not booking an alignment for the same day and thought I could just eyeball it for a week while I waited for a shop opening but my front tires got chewed up so fast it was basically like throwing money away tbh
- Make sure you have a real heavy duty impact wrench because some of those factory bolts on the 2500s are stuck on there so tight I thought I was gonna snap my breaker bar or my arm haha It’s definitely doable if youre handy but man it’s a workout and you gotta be careful with the safety stuff for sure just take your time and dont rush the process