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🚛 Elevate your ride with precision and power — the ultimate upgrade for your lifted Chevy/GMC!
These front upper control arms are engineered specifically for 2-4" lifted 2000-2010 Chevy Silverado and GMC Sierra 2500/3500 HD trucks, restoring perfect suspension geometry for improved handling and tire wear. Constructed from high-strength mandrel-bent tubular steel with greaseable ball joints, they offer enhanced durability, quieter operation, and easy maintenance. Designed as a direct bolt-on replacement, they fit both 2WD and 4WD models, making them the ideal upgrade for professionals seeking reliable, factory-like performance on lifted heavy-duty trucks.









| ASIN | B0C9LZF98R |
| Auto Part Orientation | Drivers Side |
| Auto Part Position | Upper |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #7,586 in Automotive ( See Top 100 in Automotive ) #7 in Automotive Replacement Control Arms |
| Brand | SUCOSO |
| Brand Name | SUCOSO |
| Color | Black |
| Customer Reviews | 4.3 out of 5 stars 479 Reviews |
| Fit Type | Vehicle Specific Fit |
| Included Components | Comes with housing |
| Item Type Name | Control Arms |
| Manufacturer | SUCOSO |
| Manufacturer Part Number | 4304173 |
| Manufacturer Warranty Description | 1 years |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Model Number | 4304173 |
| Orientation | Drivers Side |
P**L
Great Fit, Quality Construction, and Solid Initial Performance
Installation was straightforward with no fitment issues. The control arms were clearly labeled for the correct side, which helped simplify the install. All mounting points aligned properly, and the hardware fit as expected without any modification. I was initially concerned about the quality of the ball joints, but after installation and some time on the road, they've remained tight with no noticeable play, noise, or abnormal wear. Long-term durability is still to be determined, but based on fit, finish, and initial performance, these control arms have exceeded my expectations.
J**S
Very good quality
These look really nice, and for the money it would be hard to find a better deal. Someone else mentioned that they weren’t marked, mine have an R and an L, so maybe his weren’t and they fixed it? Idk, but I’ve swapped a lot of front end parts in my day, being poor it’s a must and there’s nothing wrong with these upper control arms. I’ll edit the post once they’re installed. 2024 Ram 1500. They went right in, nice fit. I have no problem with these and don’t get why some people get name brand for 3x the price, you’re replacing a plastic upper control arm, these are metal and they work just fine.
R**S
Solid Quality, needs greasing
I used these to replace some old oe style moogs and I could not be happier. My 09 Silverado has a 4” lift and just taking off the wheel revealed just how strained they were. They looked like they had reached their maximum articulation about 2” ago. Not only that but the grease was starting to pour out from just how at their limit they were. There was definitely some assembly required with these, specifically the bushings needed to be greased with a grease gun because it came disassembled. After that, the difference was night and day. When installed, these still had more articulation even with the wheel off and the sway bar link disconnected. They also moved up and down a bit easier than the old stock style ones. The boots on the new ones say “KSP” on them so I think they are the exact same as the name brand ones, just without the name and cheaper so you save yourself a few bucks. Really cool. I saw some comments here that said these rub the tire/rim when installed but I didn’t see this issue at all (see photos) on my 275/60r20s. One thing worth noting is that I believe these are aluminum vs the steel/iron of the moogs. So time will tell if these last as long as those. Very pleased overall, I wish they had stayed more clearly that they would need to be greased as I’m sure not everyone is going to have a grease gum laying around.
W**N
Solid Build Quality for the Price
I picked these up for my Chevy Silverado, and overall, I’m pretty happy with them. The fitment is excellent. They bolted right up without any major issues, and they seem to be built with decent quality materials that feel much sturdier than the stock arms. However, there are two things you need to know if you're planning on buying these: Clearance: Be aware that you may experience some minor rubbing when making very sharp turns. It’s manageable, but something to be conscious of while driving. Maintenance: These do not come pre-greased. Make sure you have a grease gun and plenty of high quality grease ready to go before you start the installation so you can properly lubricate the ball joints. If you don't mind a little extra prep work and are aware of the clearance, these are a great way to handle that lift. Definitely worth the price!
C**E
Both Grease Zerks Snapped off
When trying to grease joints not one but two grease zerks snapped off. I know people who have had good luck and other like me who haven’t seems hit or miss.
C**S
Worth the money
Super easy to install. Have had these installed on my truck about 6 months now and I can feel the difference in: Drivability, Stability, Durability and the appearance looks awesome and more clean.
T**M
Easy to install
So far so good, fits my ‘22 Ram Bighorn 4wd no issues. Have to put the bushings in when you get it and they’re not labeled so just match the one you take off to the one you’re putting on, longer side of the arm SHOULD go towards the front of that helps. Overall good quality
R**K
Well worth the price. Exactly what I needed.
Well made and looks great. It’s exactly what I needed after I did a leveling kit using pucks on the struts. Just pay attention to where the zerk fittings are pointed. It’s a bitch getting them greased when they are not oriented properly. Not a great photo to show off the control arms, but it’s all I have. Sadly, this is the only photo I took before the truck was totaled.
M**X
Good ride
Easy to install and Truck rides a lot better I got a 2 inch lift on the front so this helps, better then the stock once.
M**W
Must get
Probably the strongest and best control arms I ever had I had them for a year now and beat the crap out of them worth the purchase but will need spacers unless you got back spacing on the rims stock rims will hit the control arms
J**Y
I'd buy again
Bought these for my 09 silverado 1500, ive had them in for about a year now roughly I think. So far no issues and was agreat fit. Price was reasonable and delivery was fairly quick.
K**A
Easy to assemble
Came in good conditon easy to put on the truck
A**N
Great upgrade to my Silverado.
Installed professionally on my Silverado 3500HD. Mechanic said was best ones he’s installed. Lots of grease fittings to keep well lubed and quiet. Gives enough lift to give truck a nice stance and allows room for next size up from standard tire size. A modest upgrade giving a nice overall look to my Silverado. A year down the road I am still happy with the quality. Still tight and quite smooth ride.
Trustpilot
1 month ago
1 week ago