Rough Country 1323
2″ upper strut spacer on the factory strut. 2019–2024 Chevy/GMC 1500. 2WD/4WD on matching trucks. Not Trail Boss, AT4, AT4X, ZR2, ARC Denali, diesel, Super Cruise, or 1500 LD. Front level only. Part 1323.
Buying guide
Rough Country Spacer vs N3: Best Leveling Kit for 2019–2024 Silverado 1500
2019–2024 Silverado 1500 leveling: Rough Country 2" spacer vs N3 loaded struts; skip Trail Boss, AT4, AT4X, and ZR2.
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Who this is for / skip
For you if: you drive a 2019–2024 Silverado 1500 (or the matching GMC Sierra 1500 new-body band) and you want the front closer to level with the rear. You already know whether you want a spacer on the factory strut or N3 loaded struts. You will match trim exclusions before you buy.
Skip this page if: the truck is Trail Boss, AT4, AT4X, or ZR2. Skip Denali / Denali Ultimate with Adaptive Ride Control. Skip diesel and 1500 LD. Skip if you want a full lift kit or a rear block. Comparing leveling across trucks → best truck leveling kit. Shopping an F-150 or Tacoma → 2021–2025 F-150 leveling · 2024–2025 Tacoma leveling.
Rough Country N3 501065_A
~2″ level with Rough Country N3 loaded front struts. Same trim exclusions as 1323. This page covers 2019–2024 only. Not a spacer on the factory strut. Part 501065_A.
ReadyLIFT 66-39150
1.5″ upper strut spacer. 2019–2023 GM 1500 2WD/4WD new body. Not Trail Boss / AT4 / AT4X. Not 2019 Limited old body. Not a 2024 buy on this page. Part 66-39150.
How they differ
Same Silverado 1500 aisle. Different hardware and height.
Spacer vs N3 loaded struts
Rough Country 1323 keeps the factory dampers. The spacer sits on the upper strut and lifts the front 2 inches.
Rough Country 501065_A replaces the front struts with N3 loaded units at about the same 2″ level. Pick it when you want the damper upgrade with the level — not a bolt-on spacer on the stock strut.
A spacer on the factory strut is not an N3 loaded-strut kit. Do not order one and expect the other.
ReadyLIFT year stop
ReadyLIFT 66-39150 is 1.5″ and 2019–2023 only on this page. A 2024 Silverado 1500 skips ReadyLIFT here and stays on Rough Country 1323 or 501065_A.
Exclusions (all three)
Trail Boss, AT4, AT4X, ZR2, Denali / Denali Ultimate with Adaptive Ride Control, diesel, Super Cruise, and 1500 LD are out. Confirm the listing year and trim before you buy.
After install
Leveling changes ride height and can affect forward cameras, radar, and ADAS. Plan for a dealer or alignment-shop recalibration after install. Front level only — not a full lift, not rear blocks.
Rough Country 1323 (2019–2024 Silverado / Sierra 1500)
For a 2019–2024 Silverado 1500 when you want a 2″ spacer and keep the factory dampers.
- 2″ upper strut spacer. Listing: 2019–2024 Chevy/GMC 1500. 2WD/4WD on matching trucks
- Not Trail Boss, AT4/AT4X, ZR2, ARC Denali, diesel, Super Cruise, or 1500 LD
- Front level only. Part 1323. Maker charts may list later years — this page stays 2019–2024
Drawback: Keeps factory dampers — not the N3 loaded-strut kit. Wrong kit for factory-lift trims above.
Rough Country N3 501065_A (2019–2024)
For a 2019–2024 Silverado 1500 when you want ~2″ and N3 loaded front struts.
- ~2″ level with Rough Country N3 loaded front struts. Part 501065_A
- Same exclusion family as 1323. This page covers 2019–2024 only
- Not a spacer on the factory strut — do not order it expecting 1323 hardware
Drawback: Replaces front struts — more install than a spacer. Do not stretch past 2024 on this page.
ReadyLIFT 66-39150 (2019–2023 only)
For a 2019–2023 GM 1500 when you want 1.5″ and the ReadyLIFT years match.
- 1.5″ upper strut spacer. 2019–2023 GM 1500 2WD/4WD new body. Part 66-39150
- Not Trail Boss / AT4 / AT4X. Not 2019 Limited old body
- Not a 2024 buy on this page — use Rough Country 1323 or 501065_A instead
Drawback: Year stop at 2023. 1.5″ is not Rough Country’s 2″. Confirm new-body GM 1500 on the listing.
Spec table
2019–2024 Silverado 1500 front leveling compare. No prices. Confirm year and trim on the listing before you buy.
| Rough Country 1323 | Rough Country N3 501065_A | ReadyLIFT 66-39150 | |
|---|---|---|---|
| Who for | 2019–2024 Silverado / Sierra 1500 spacer | 2019–2024 Silverado / Sierra 1500 with N3 loaded struts | 2019–2023 GM 1500 only (optional) |
| What it is | 2″ upper strut spacer on factory strut | ~2″ kit with N3 loaded front struts | 1.5″ upper strut spacer |
| Lift | 2 in front | ~2 in front | 1.5 in front |
| Years on this page | 2019–2024 | 2019–2024 | 2019–2023 only — not 2024 |
| Drive | 2WD / 4WD (matching trucks) | 2WD / 4WD (matching trucks) | 2WD / 4WD new body |
| Exclusions | Trail Boss, AT4/AT4X, ZR2, ARC Denali, diesel, Super Cruise, 1500 LD | Same family | Trail Boss, AT4/AT4X; not 2019 Limited old body |
| After install | Plan ADAS / camera recalibration | Same | Same |
| Buy link on this page | Shop | Shop | Shop (2019–2023 only) |
| Not this pick | Loaded-strut kit; factory-lift trims | Spacer on factory strut; years past 2024 | 2024 truck; 2″ Rough Country spacer |
Fitment
Years: This guide covers 2019–2024 Silverado 1500. Do not stretch these picks to 2025 or 2026 on this page.
Rough Country 1323: 2019–2024 Chevy/GMC 1500. Spacer on the factory strut. 2WD/4WD on matching trucks. Excludes Trail Boss, AT4/AT4X, ZR2, ARC Denali, diesel, Super Cruise, 1500 LD.
Rough Country 501065_A: N3 loaded-strut kit for the same exclusion family. This page stays 2019–2024.
ReadyLIFT 66-39150: 2019–2023 only. Skip for 2024.
Sierra 1500: Same new-body GM 1500 band named with Chevy on these listings — same exclusions. Confirm year and trim on the listing.
Not a full lift — front level only. Not rear blocks.
Skip these
Trail Boss / AT4 / AT4X / ZR2. Wrong application for these kits.
Denali / Denali Ultimate with Adaptive Ride Control. Out on the Rough Country listings.
Diesel and 1500 LD. Do not buy these kits for diesel or LD.
ReadyLIFT on a 2024. ReadyLIFT on this page is 2019–2023 only.
Full lift kits and rear blocks as leveling. Different product.
Stretching the page past 2024. Years stay 2019–2024. Comparing across trucks → best truck leveling kit. F-150 → best leveling kit for 2021–2025 F-150. Tacoma → best leveling kit for 2024–2025 Tacoma.
FAQ
Rough Country spacer vs N3 — best leveling kit for a 2019–2024 Silverado 1500?
Rough Country 1323 2″ upper strut spacer for 2019–2024 Silverado/Sierra 1500 when you want a simple spacer on the factory strut. Rough Country 501065_A when you want ~2″ with N3 loaded struts. Optional ReadyLIFT 66-39150 only if years are 2019–2023. Match exclusions before you buy.
Will these kits fit Trail Boss, AT4, AT4X, or ZR2?
No. These listings exclude LT Trail Boss / Custom Trail Boss, AT4 / AT4X, ZR2, and Denali / Denali Ultimate with Adaptive Ride Control. Do not claim fit on those trims.
Spacer vs N3 loaded struts — which should I buy?
Spacer (1323) keeps factory dampers and is the first buy for most shoppers leveling the nose. N3 loaded (501065_A) replaces front struts with Rough Country N3 loaded units at the same ~2″ level — pick when you want the damper upgrade with the lift.
Does ReadyLIFT 66-39150 fit a 2024 Silverado 1500?
No on this page. ReadyLIFT here is 2019–2023 GM 1500 only. If the truck is 2024, skip ReadyLIFT and stay on Rough Country 1323 or 501065_A.
Do these kits fit a 2019–2024 GMC Sierra 1500 the same way?
Yes for the same new-body GM 1500 band named on these listings (Chevy/GMC 1500) — same exclusions (Trail Boss / AT4 / AT4X / ZR2 / ARC Denali / diesel / Super Cruise / LD). Confirm listing year and trim before you buy.
Will these kits fit a diesel Silverado 1500 or 1500 LD?
No. These listings exclude diesel and 1500 LD. Do not buy them for diesel or LD.
Do I need ADAS / camera recalibration after a leveling kit?
Yes — plan for it. Leveling changes ride height and can affect forward cameras, radar, and ADAS. Check a dealer or alignment shop for recalibration after install.
Where do I compare leveling kits across trucks — or for an F-150 or Tacoma?
Parent category: best truck leveling kit. F-150: best leveling kit for 2021–2025 F-150. Tacoma: best leveling kit for 2024–2025 Tacoma. This page covers 2019–2024 Silverado 1500 Rough Country spacer vs N3.
Last updated October 5, 2026. Author: TruckDaily.