JBA

2003 Toyota 4Runner Upper Control Arm Solutions

Upgrade your ride quality and handling with a 2003 Toyota 4Runner Upper Control Arm designed for strength and smooth performance on and off the road. Discover easy installation options tailored to fit your lifted or stock 4Runner for improved durability and alignment.
Upgrade your ride quality and handling with a 2003 Toyota 4Runner Upper Control Arm designed for strength and smooth performance on and off the road. Discover easy installation options tailored to fit your lifted or stock 4Runner for improved durability and alignment.

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3 Items

  • JBA STD High Caster Upper A-arms for 2005-14 Toyota
    Pre-Assembled Kit - fits lift type
    Spring Lift or Leveling Kit [1 to 3.5-inch lift]

    Spacer Lift, Leveling kit, and Spring lift kit

    These kits cause the upper arms to angle downward toward the ball joints. The Leveling kit or strut lift removes the factory rake angle by lifting the front level with the rear of the vehicle.

    Spring kits remove the factory rake angle and lift the rear of the vehicle about 1.5" - 2.5"
    JBA STD High Caster Upper Control Arms for Toyota 4Runner 2003-2024 (1 to 3.5 inch lift)
    $603.00
  • JBA UCAs for Toyota Tacoma, 4Runner, FJ Cruisers, Lexus GX470, Lexus GX460 2003-2023 (4 to 12 inch lift)
    Pre-Assembled Kit - fits lift type
    Cradle Drop Kit [4 to 12-inch lift]

    Cradle Drop Kit

    Like the factory stock suspension, these kits keep the upper arms level. cradle drop lift, cross-member drop, or drop bracket lift kit

    • This style kit relocates the lower control arms on the front of the vehicle using a drop bracket. These brackets offset the lower control mounting holes by 4", 6", or 8". These kits also include longer steering knuckles to fit within the bigger gap between the upper and the lower ball joints.
    JBA UCAs for Toyota Tacoma, 4Runner, FJ Cruisers, Lexus GX470, Lexus GX460 2003-2023 (4 to 12 inch lift)
    $853.00
  • JBA HD High Caster Upper A-arms for Toyota Tacoma "05" Plus, 4Runner "03" Plus, FJ Cruisers "07" Plus
    Pre-Assembled Kit - fits lift type
    Spring Lift or Leveling Kit [1 to 3.5-inch lift]

    Spacer Lift, Leveling kit, and Spring lift kit

    These kits cause the upper arms to angle downward toward the ball joints. The Leveling kit or strut lift removes the factory rake angle by lifting the front level with the rear of the vehicle.

    Spring kits remove the factory rake angle and lift the rear of the vehicle about 1.5" - 2.5"
    Spring Lift with Cradle Drop Kit

    Spring lift kit with Cradle Drop Kit

    These kits cause the upper arms to angle downward toward the ball joints. The cradle drop lift, cross-member drop, or drop bracket lift kit with spring kits.

    Example: 4" cradle drop lift with a 2" spring/coil over lift = 6" lift kit. 6" cradle drop lift with a 2" spring/coil over lift = 8" lift kit. When the mounting holes are offset by 4" and the kit is a 6" kit, the other 2 inches are made up from the strut lift or spring lift.
    JBA HD High Caster Upper Control Arms for Toyota Tacoma, 4Runner, FJ Cruisers, Lexus GX470, Lexus GX460 (1 to 3.5 inch lift)
    $853.00
See What Our Customers Have Built!
Wifes Rig

JBA HD High Caster Upper Control Arms for Toyota Tacoma, 4Runner, FJ Cruisers, Lexus GX470, Lexus GX460 (1 to 3.5 inch lift)

Lift Type: Spring Lift or Leveling Kit
Lift Height: 3"
Tire Size: LT285/75 R17
~33.8” x 11.2” x 17”
Read this Build
07 GX470

JBA HD High Caster Upper Control Arms for Toyota Tacoma, 4Runner, FJ Cruisers, Lexus GX470, Lexus GX460 (1 to 3.5 inch lift)

Lift Type: Spring Lift or Leveling Kit
Lift Height: 3"
Tire Size: P285/75 R17
~33.8” x 11.2” x 17”
Read this Build
2015 Toyota Tacoma 4x4 - Game Changer for Big Lifts!

JBA UCAs for Toyota Tacoma, 4Runner, FJ Cruisers, Lexus GX470, Lexus GX460 2003-2023 (4 to 12 inch lift)

Lift Type: Both Spring Lift and Cradle Drop
Lift Height: 11"
Tire Size: 343/0 R35
35x13.5 R35
Read this Build
2016 Toyota Tacoma TRD Sport Overland Build

JBA HD High Caster Upper Control Arms for Toyota Tacoma, 4Runner, FJ Cruisers, Lexus GX470, Lexus GX460 (1 to 3.5 inch lift)

Lift Type: Spring Lift or Leveling Kit
Lift Height: 3"
Tire Size: LT315/70 R17
~34.4” x 12.4” x 17”
Read this Build
View All Customer Builds
A Summary of the Benefits
Made in usa
  1. 1
    Ball joints are mounted on an angle to line up with steering knuckle

    No more premature ball joint failure!

  2. 2
    Replaceable ball joints

    You can replace the ball joint for under $75.00 per control arm.
  3. 3
    Factory front end alignment

    No premature tire wear.

  4. 4
    Red powder coat finish

    Your friends can see you invested in custom arms for your vehicle

  5. 5
    Heavy duty tubing

    Long lasting off road durability.

  6. 6
    CNC manufactured parts

    Precision and consistent parts every time!

  7. 7
    Manufactured in USA

    Made by Americans for ALL!!

  8. 8
    3 degrees additional caster

    Impove alignmnent through additional added positive caster

  9. 9
    3/4 inch more down travel

    Adds 3/4 inch more down travel just by changing your upper controll arms

2003 Toyota 4Runner Upper Control Arm

JBA Offroad's 2003 Toyota 4Runner Upper Control Arms deliver precise alignment correction and increased wheel travel designed specifically for lifted vehicles. Built from high-strength tubular steel and meticulously powder coated in the USA, these arms improve handling, articulation, and stability both on-road and on the trail.

Engineered Performance and Durability

These control arms feature patented EZ Lube bushings with built-in grease ports that allow easy maintenance without loosening hardware. Our Max 90 ball joints offer the greatest range of motion available, extend service life, and are rebuildable. Each arm undergoes strict quality controls to ensure long-term durability in harsh off-road conditions. They are designed to fit 1 to 3.5 inch lifts and come backed by a lifetime warranty on structural integrity and a full year on bushings and ball joints.

Looking for a Different Model? Toyota 4Runners Upper Control Arms | 1996-2003 Toyota 4Runner Upper Control Arm | Toyota Fj Cruiser Upper Control Arm

Shop All Upper Control Arms: Toyota Upper Control Arms | Upper Control Arms | Upper A Arm Kit

Fast Shipping and Risk-Free Purchase

In stock and ready to ship from Pennsylvania, your 2003 Toyota 4Runner Upper Control Arm will be dispatched within one business day. A generous 365-day return policy ensures you can buy with confidence, supported by direct customer service from the manufacturer. Upgrade your suspension today and take your 4Runner further with JBA Offroad's proven quality and performance.