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About dcarl

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  • Birthday 01/18/1961

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  1. I’ve punctured 10 ply tires just as much as the other.... in that size, you would be more comfortable with the 4 ply. I run LT285/60R20 and to get a decent ride I run them at 38 psi cold. Really should be running 42 psi based on the conversion table from Toyo Tires but it definitely has an impact on ride quality. As you go bigger, the p-metric options are hard to find. Nitto Terra Graplers G2 come in a 305/55R20 "XL" version which is lighter.
  2. I had RC UCAs on my 15' Sierra with Boss Coilovers at 3". Without wheel spacers, my stock 20" wheels would contact that apex on the front of the arm (metal to metal)... I ended up replacing the arms with Cognito, dropped it back down to 2" and there is no rubbing anywhere.
  3. I don't remember but you won't hurt anything switching them. Sent from my SM-G975U1 using Tapatalk
  4. I've had my soft cover on for almost 5 years and never had an issue with it. Sent from my SM-G975U1 using Tapatalk
  5. Yes, my setup is Cognito UCAs and Boss coilovers. When you level a truck with spacers, you lose down travel because the stock UCAs ball joint is the limiter. By replacing UCAs you gain that down travel back. You don't want to over extend the suspension with aftermarket UCAs because the shock becomes the limiter. Based on your intended use, you shouldn't have to worry about that. You can even get by without replacing the UCAs but your ride will be a little harsh in some circumstances. I'm glad I did the upgrade because my truck rides about as good or better than stock. The stock Ranchos are junk... Sent from my SM-G975U1 using Tapatalk
  6. I've had all three options and the coilovers ride the best. I orginally started out with Bilstien 5100 and a Zone 2" kit with the shocks at stock setting. The ride was ok but always felt like I was hitting a limit on down travel. Next I went with the Eibach Pro Truck lift and found it to be too stiff. I recently installed the Halo Lifts Boss Coilovers. At first I went 3" (shock set at 2" and two spacers under for an additional inch) . I also installed Rough Country UCAs and had 1" BORA spacers. I had vibration problems with the spacers so I took them off. The problem then was that the wheel would contact the UCA. So I took out the two spacers under the strut and installed Cognito UCAs. The ride is really good. My stock wheels & LT285/60R20 tires don't rub anything. If you add up the money I've spent I could have gone with a lift kit.... The Boss Coilovers are worth the money... Sent from my SM-G975U1 using Tapatalk
  7. I found my unlock module that I installed in my truck. It's from PAC, p/n NU-GM51. It allows you to input destination while driving. You activate it by double pressing th rear defrost button and the accept the warning. Sent from my SM-G975U1 using Tapatalk
  8. I put a separate module in mine when I did the upgrade. You may be able to get that programmed in. You also have to replace the radio as part of the I06 upgrade. I went through MVI for mine. The radio and the I06 module are paired as far as i know. I had factory Nav on my I05 and wanted to retain the feature so that was my experience. Sent from my SM-G975U1 using Tapatalk
  9. I'm not sure about the ProComp lift, but others like BDS and Zone push the front wheel out 1 1/2" so most people run a 1 1/2" spacer only on the rear to make them match. Theoretically the spacers should match the OEM lug pattern unless someone put a wheel on that is different. One way to make sure the lug pattern of the current spacers would be put the spare tire on and it matches then you should be ok. Sent from my SM-G975U1 using Tapatalk
  10. Option 1 will leave you with steep CV angles. Also depends on what UCA you choose may or may not require Wheel Spacers with the stock wheels. I ran BORA 1" spacers with my setup when I first installed my Boss Coilovers with RC UCAs. I had vibration issues with the spacers. I even tried it with and without a Differential Drop Kit. The vibration was really bad when you hit the brakes. I tried to run it without the spacers and it did smooth out, but my stock wheels rubbed on the edge of the RC UCAs and limited my steering. I've since dropped the coilovers to 2" and installed a set of Cognito Ball Joint UCAs with no spacers. It rides better and no rubbing. I've also got a Zone 1.5" Body Lift so it is effectively 3.5" higher than stock. I think running that large of a top spacer and the Bilsteins at the first setting will result in a pretty stiff ride. I had the Bilsteins for 3.5 years on the stock setting with a Zone 2" level kit and the truck rode ok, but was a little harsh on bumps and dips. The coilovers made a huge difference in ride quality.
  11. No squeaks that I know of. For my application, the RC Arms were fine except the rubbing without a wheel spacer. I also think that because I dropped an inch by removing the spacers under the coilovers, it changed the geometry and put the wheel further out towards the fender allowing more room for it to turn. The Cognito arms are not as wide as the RC, and there's an angle on the RC arms made contact with the wheel. As far as build quality the Cognito have better bushings and I think the ball joint is better as well.
  12. Yes those are the same part number. They were easy to install. I previously cut the stops out when I installed the Rough Country arms. With the Boss Coilovers installed, I did not have to remove them. If you plan to do both at the same time, I would advise getting a paint marker to mark your current alignment positions so that when it goes back together your alignment should be close enough to drive to the shop to get it aligned.
  13. I just installed a set of Cognito Ball Joint arms a couple weeks ago. I also have Boss Coilovers and initially set them up with two spacers to get the 3" of lift with Rough Country contro arms. With the stock wheels I had to run 1" BORA spacers to keep the wheels from rubbing. The spacers caused vibration and when I took them off, the wheels hit the edge of the rim on an angle of the arms. I later took out the two spacers under the coilovers and installed the Cognito arms. Happy to report the ride is better and if there's any rubbing at all its minor and only at full lock. So far I haven't seen any evidence of rubbing on the control arms. Sent from my SM-G975U1 using Tapatalk
  14. I don't have the RC lift. Mine has the Halo Lifts Boss Coilovers set at 2" and a Zone 1.5" Body Lift (Effectively 3.5") with LT285/60R20 Cooper Discoverer AT3 tires.
  15. Maybe this help the original poster: I had the Bilstein 5100's at the stock setting with a Zone 2" Level Kit for 3 1/2 years. When I decided to make a change, I went with the Eibach Pro Truck Lift which provides the Springs and Shock. (You use the hardware from the original strut). The ride was much stiffer than I expected at first. I called Eibach to inquire about the Spring Rate and was told they 820# (10% higher than the stock spring which puts it around 740#. I ordered and installed a set of Halo Lifts Boss Coilovers and the spring rate on them is 700#. The Eibach kit did soften up a little after 1000 miles or so but I had already ordered the Boss Coilovers. You can see how beefy the Eibach Spring is on the left vs. the Eibach Spring on the Boss Coilover. Even with the Coilovers installed with (2) spacers giving it a 3" lift rides better than the Bilstein or Eibach strut. I am going to remove the spacers and drop it back down to a 2" lift because at 3" it puts too much angle on the other components even with new UCAs. Theoretically it should also ride smoother at 2" instead of 3". .
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