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Rough Country 3.5 Inch Lift Kit

A lift kit from Rough Country: 3.5 in front lift. Rough Country makes it for 3 truck generations, each with its own part number and conditions.

By the FitsMyTruck team. Figures come from Rough Country's own spec sheets and fit charts, part numbers are checked against the live listings, and the page is reviewed before it goes up. Last reviewed Oct 24, 2026.

The Rough Country 3.5 Inch Lift Kit in brief

The Rough Country 3.5 Inch Lift Kit line has six part numbers, and they cover three truck families: the Jeep Gladiator JT, the Chevrolet Silverado 1500 and the Toyota Tundra. Every kit lists a front lift of 3.5 in and shocks included. The maker lists rear parts in each kit but states no rear lift height for any of them. Two are spacer lifts and four are full suspension lifts. Gladiator kits 63730, 64930, 78800 and 78730 cover 2020-2023 and 2024-2026 and are 4WD only. Kit 121 covers the Silverado and Sierra 1500 4WD, 2014-2018. Kit 76830 covers the Tundra, 2007-2021, in 2WD and 4WD. The largest tire the maker lists is 37 in, on three of the six kits. The maker lists no Ram 1500 application for this line.

full suspension lift (4 of 6), spacer liftKit type
3.5 inFront lift
not publishedRear lift
includedShocks included or required

Part numbers, applications and specifications

  • 63730

    3.5 Inch Lift Kit, spacers (Gladiator JT 2020-2023)

    • Kit typespacer lift
    • Front lift3.5 in
    • Shocks included or requiredincluded
    • Largest tire the maker lists37 in
    • Drive fitment4WD
    Check price on Amazon

  • 64930

    3.5 Inch Lift Kit, springs (Gladiator JT 2020-2023)

    • Kit typefull suspension lift
    • Front lift3.5 in
    • Shocks included or requiredincluded
    • Largest tire the maker lists37 in
    • Drive fitment4WD
    Check price on Amazon

  • 78800

    3.5 Inch Lift Kit, springs (Gladiator JT 2024-2026)

    • Kit typefull suspension lift
    • Front lift3.5 in
    • Shocks included or requiredincluded
    • Drive fitment4WD
    Check price on Amazon

  • 78730

    3.5 Inch Lift Kit, spacers (Gladiator JT 2024-2026)

    • Kit typespacer lift
    • Front lift3.5 in
    • Shocks included or requiredincluded
    • Largest tire the maker lists37 in
    • Drive fitment4WD
    Check price on Amazon

  • 121

    3.5 Inch Lift Kit (Silverado/Sierra 1500 4WD 2014-2018)

    • Kit typefull suspension lift
    • Front lift3.5 in
    • Shocks included or requiredincluded
    • Drive fitment4WD
    Check price on Amazon

  • 76830

    3.5 Inch Lift Kit (Tundra 2007-2021)

    • Kit typefull suspension lift
    • Front lift3.5 in
    • Shocks included or requiredincluded
    • Drive fitment2WD and 4WD
    Check price on Amazon

Which part number is yours

Pick by truck first, then by kit type. For the Gladiator JT, 63730 (spacers) and 64930 (springs) are the 2020-2023 pair, and 78730 (spacers) and 78800 (springs) are the 2024-2026 pair. The maker lists a 37 in largest tire on 63730, 64930 and 78730 and states no tire size on 78800. All four Gladiator kits skip the Mojave with FOX 2.5 shocks, and 64930 also skips the 3.0L EcoDiesel V6. Install time on these is 3-4 hours. Kit 121 for the Silverado and Sierra 1500 4WD requires cutting and grinding, does not work with aftermarket control arms, does not fit Denali trims with Magnetic Ride Control or eAssist, and needs a front differential mass damper removed if fitted. Install is 4-6 hours. Kit 76830 for the Tundra excludes TRD Pro, Rock Warrior and XSP-X, and TRD models with a red rear sway bar must remove it. Install is 4-6 hours. Match the part number, years and drive on the listing.

Trucks it fits

  • 2020-2026 Jeep Gladiator

    • Fits, 63730
    • Fits, 64930
    • Fits, 78800
    • Fits, 78730

    Rough Country 63730 fits the 2020-2023 Gladiator JT 4WD and levels the front with the rear. The kit has front and rear coil spring spacers, a forged track bar with rear track bar bracket, sway bar links, bump stops and four Premium N3 shocks (V2 and M1 selectable). It does not fit Mojave models with FOX 2.5 shocks. Install time is 3-4 hours. Rough Country 64930 fits the 2020-2023 Gladiator JT 4WD. The kit has lifted front and rear coil springs, a forged track bar, sway bar links, bump stops and four Premium N3 shocks (V2, M1 and M1R selectable). It does not fit the 3.0L EcoDiesel V6 or Mojave models with FOX 2.5 shocks. Install time is 3-4 hours.

    Check price on AmazonAll lift and leveling kits for this truck

  • 2014-2018 Chevrolet Silverado 1500

    • Fits, 121

    Rough Country 121 fits the 2014-2018 Silverado 1500 4WD, with base kit 12430 for cast steel lower control arms and 12130 for aluminum or stamped steel. The kit has strut spacers, lifted knuckles, differential drop spacers, a skid plate, 3 in fabricated rear lift blocks and two Premium N3 shocks. It requires cutting and grinding and does not work with aftermarket control arms. It does not fit the Denali or Denali Ultimate (Magnetic Ride Control) or eAssist, and a mass damper on the front differential must be removed. Install time is 4-6 hours.

    Check price on AmazonAll lift and leveling kits for this truck

  • 2007-2021 Toyota Tundra

    • Fits, 76830

    Rough Country 76830 (76831 with N3 struts, 76840 with M1 struts, 76857 with Vertex/V2) fits 2WD and 4WD trucks and is listed for 2007-2021. It has upper control arms, strut spacers, preload spacers, differential spacers, bump stop spacers, rear lift blocks and two rear Premium N3 shocks, and the N3 loaded struts are for 4WD only. It does not fit TRD Pro, Rock Warrior or XSP-X, TRD models with a red rear sway bar must remove it, and install takes 4-6 hours.

    Check price on AmazonAll lift and leveling kits for this truck

Before you buy a lift kit

Questions owners ask

What is the largest tire for the Rough Country 3.5 inch lift on a Gladiator?

The maker lists 37 in for 63730, 64930 and 78730. For 78800, the 2024-2026 springs kit, the maker states no tire size, so check the maker's listing for that one.

Does Rough Country list a 3.5 inch lift kit for the Ram 1500?

No. The six part numbers cover the Jeep Gladiator JT, the Chevrolet Silverado 1500 with the Sierra 1500 label, and the Toyota Tundra. Check the maker's site for any Ram 1500 listing.

Will the 3.5 inch lift fit a Gladiator Mojave?

No. The maker states that none of the four Gladiator kits (63730, 64930, 78800 and 78730) fit the Mojave with FOX 2.5 shocks. Part 64930 also does not fit the 3.0L EcoDiesel V6.

Is the Tundra 3.5 inch lift kit for 2WD or 4WD?

Kit 76830 is listed for 2WD and 4WD, 2007-2021. The N3 loaded struts (SKU 76831) are for 4WD only. The kit does not fit TRD Pro, Rock Warrior or XSP-X.

How long does the Silverado 3.5 inch lift take to install?

The maker gives 4-6 hours for kit 121. It requires cutting and grinding and does not work with aftermarket control arms. Trucks with a mass damper on the front differential must remove it.

Where these figures come from

Every figure above is Rough Country's own, from its spec sheets, fit charts and install guides, checked on Oct 24, 2026.

7 maker documents
  • Rough Country, manufacturer product page (Rough Country storefront data read in the built-in browser pane; a plain HTTP fetch returns 403), read Oct 24, 2026
  • Rough Country, manufacturer category page FAQ (read in the built-in browser pane); the same FAQ appears on every lift kit category page, read Oct 24, 2026
  • Rough Country, manufacturer product page (Rough Country storefront data read in the built-in browser pane; a plain HTTP fetch returns 403), read Oct 24, 2026
  • Rough Country, manufacturer product page (Rough Country storefront data read in the built-in browser pane; a plain HTTP fetch returns 403), read Oct 24, 2026
  • Rough Country, manufacturer product page (Rough Country storefront data read in the built-in browser pane; a plain HTTP fetch returns 403), read Oct 24, 2026
  • Rough Country, manufacturer product page (Rough Country storefront data read in the built-in browser pane; a plain HTTP fetch returns 403), read Oct 24, 2026
  • Rough Country, manufacturer product page (Rough Country storefront data read in the built-in browser pane; a plain HTTP fetch returns 403), read Oct 24, 2026
Rough Country 3.5 Inch Lift Kit 63730Check price on Amazon