Jump to content

2018 Sierra 1500 Upper Control Arms

schnid21
 Share

Recommended Posts

schnid21 Enthusiast

schnid21

Posted
Posted

Sorry if this has already been beat to death, but I did a bunch of searching and I could not find a straight answer for the 2018 trucks.

 

Truck is a 2018 SLE with a 2" RC level (just the spacer).   Stock 20" rims with 275/60/R20 rubber.

 

I'm looking to get a set of upper control arms that will correct the ball joint angle.  What options do I have for the 2018 (from what I can tell something changed on this year of truck that quite a few older versions won't work?).  

 

Will all the aftermarket options hit at full steer with the stock rims and offset?

 

Thanks for any info that can point me in the right direction.

 

Thanks

 

Jason

reardiff Enthusiast

reardiff

Posted
Posted

I went through the same thing when I did my level too.  I found the link below to be most valuable.  You can buy just the UCA or the kit with the spacers.  There's plenty of other options out there, but found the Ready Lift UCA's to be a great aftermarket replacement at a reasonable price especially when adding a level.  

 

Ready Lift - UCA Info.

schnid21 Enthusiast

schnid21

Posted
  • Author
Posted

Thanks for the info.  I just watched this video.  Albeit that is a year or 2 newer truck.  And based off what he found it look like the rubber would rub the upper control arm with stock rims and slightly bigger tires.

 

 

reardiff Enthusiast

reardiff

Posted
Posted (edited)

I have a 2017 with stock stamped steel UCA's, 1.5 inch level, and 275/60/20's on stock rims and no rubbing. I was going to get the Ready Lift UCA's at the time but decided to just wait and see how long I can get out of the stock control arm.  So far 25,000 miles and no issues or rubbing. When it's time to replace them I'll most likely be going with the Ready Lift.

Edited by reardiff
3tspapat Enthusiast

3tspapat

Posted
Posted

I have 2018 4WD with readylift's 2.5" level with their UCA. Inside driver tire did rub very slightly with UCA at full turn with my 275/60/20 on stock wheels but not the passenger side. Not enough to really do anything other than make a streak on the tire and take off some paint on the UCA. Finally went with 0 offset wheels so no more rubbing.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • KARNUT
      Wow I'm in a pickle. (Broke down truck) and a story.

      By KARNUT · Posted

      Google converting 98 4.3 spider injection to carburetor if all else fails. 
    • Hoginedgewood
      MPG Surprise

      By Hoginedgewood · Posted

      That computer lies!
    • Tbhats2130
      2018 Silverado Console USB Port Not Working

      By Tbhats2130 · Posted

      My centre console USB ports haven’t been working and the one in the glovebox is starting to act up. When I plug my phone into the cord the radio will go black and stop playing, and the CarPlay is inconsistent.   I checked the fuses and they were fine. I changed the USB port out and still nothing. Hoping for some advice on what I should be looking at.  
    • Atlas
      Wow I'm in a pickle. (Broke down truck) and a story.

      By Atlas · Posted

      The truck is a 1995 Chevrolet S10 Blazer, 4.3 VIN "W" engine. :cracks knuckles:   On a whim - because I needed a headache - this truck was for sale so I stopped to take a look. Doesn't run. Well, it does, but barely. Long crank, choppy idle, bad misfire(s), it REEKS of fuel. I can DO this..I'm thinking. Diamond in the rough. One owner until last year. A young guy is selling it, he bought it 6 months ago. It stranded him more than once, he's got a newborn. It was in the shop 10 days ago and he "thinks" they said it needs a new fuel injection system. He can't put any more money into it, needs it gone. I was thinking of upgrading my Macbook, which is a total want, not a need. For less than the price of a new laptop I can have fun for months tinkering on this truck and enjoying it. I'm taking this truck home. The guy was beyond thrilled, his wife was there, she thanked me profusely, I could tell they were hurting. They seemed like good people in a bind.   Some parts, a wash, maybe a set of tires, and I can have a few months of fun and then turn it for beer money (or the next project).   Sure enough, there's a work order from a shop last week in the INCHES of paperwork on this truck dating back to when the first owner bought it. They put a new distributor in it, fuel injection work describes basically opening the plenum and putting it back together. He said he couldn't afford any more work so he had them button it up and that's when he put it up for sale.   I'm not well versed in 4.3. I did discover 1995 uses the 1992-1995 SCPI "Spider" injector which is riddled with issues from splitting lines, clogged or cracked poppet valves and plastic spider legs that crumble over time. Cool. I'll just order me a ne---. Oh, the auto parts store doesn't have it? Rock Auto doesn't have it. eBay? $$$$$$ for used. These are UNAVAILABLE period end of story unless you know "a guy" who's still got one in a box somewhere.   Can't upgrade to the '96-'04 injector, it's a different plenum, wiring/pinout and sensor config.   There are a few kinda "know a guy" -guy rebuild services for these injectors out there for about $350. Okay, Okay... I'd like to know if anyone has used them? Anyone got a lead on these crappy 92-95 spiders?   I also don't want to send MY spider to Narnia and back without knowing if that's truly the problem. I guess I'll need to pull apart the plenum and do some digging.   I was also thrown for a loop. This 1995 model year truck has an OBD-II connector. The interface is decidedly not OBD-II. I can read and reset trouble codes and view live data, but there's not a lot of data. Like misfire count and on what cylinder, that's not there. It's OBD-1.5.   Nothing is ever easy. Now it makes sense why this guy wanted to disappear this thing for cheap. I'm guessing the shop told him the injector is toast, the part is unobtainable and they're not going to sort sending the thing to a rando offering rebuild service on craigslist, and the kid likely can't be without a working car for 3 weeks even if they'd facilitate that.   Experience with these early SCPI's? Stories? Things to check? Sympathy? (..Nah...)   This can sit until I sort it. But I haven't had a problem with a vehicle I couldn't easily solve in a long time.    
    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      I have four that read by the dash 8 to 10% better than miles/pump calculations and I have one that is spot on. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...