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

JBA HD High Caster Upper A-arms for Toyota Tacoma "05" Plus, 4Runner "03" Plus, FJ Cruisers "07" Plus

$790.00

Sku#: JBA-7.5.HC.EZ

Pre-Assembled Kit - fits lift type

Spring Lift or Leveling Kit [1 to 3.5-inch lift] Spring Lift with Cradle Drop Kit

The JBA HD A-Arms are compatible with most spring lifts or leveling kits on the market today. They work with spring lifts up to 4 inches.

High Demand - Available with a Longer Shipping Time

Typically ships within 24 hours on business days

Qty

What included

1 Right UCA
1 Left UCA
2 JBA Max 90 ball joints
8 synthetic elastomer a-arm bushings
1 Bushing washer kit
4 steel bushing sleeves
Installation Instructions
2 JBA sticker 6 x 1

Product Specs

Weight: 22 lbs
Type: 1026 DOM A513-5 Domestic Tubing 1.313" OD x 1.00" ID
Install time: 1-3 Hours

Details

The JBA Value Pack

JBA Max 90 Ball Joints™
Patented JBA EZ Lube Bushings™
JBA Lifetime Warranty
JBA 365-day Return Policy
JBA Installation Book
JBA Stickers

JBA HD (Heavy Duty) High Caster Upper A-arms for extreme use! It works with:

Toyota Tacoma 2005-2023
4Runner 2003-2024
FJ Cruisers 2007-2014
Lexus GX470 2003-2009
Lexus GX460 2010-2023

JBA Upper Control Arms are preassembled and ready to bolt onto your vehicle!

American-made steel tubing, red powder-coat finish, replaceable ball joints, 2 grease ports for the JBA EZ lube bushings, and 1 grease port for the ball joint. Ball joints are mounted on an angle to line up with the steering knuckle.

Note Left and Right UCAs are not symmetrical.

Learn more

Fitment

Year	Make	Model
2003 - 2024	Toyota	4Runner
2007 - 2014	Toyota	FJ Cruisers
2010 - 2023	Lexus	GX460
2003 - 2009	Lexus	GX470
2005 - 2023	Toyota	Tacoma

Fits lift type

Spring Lift or Leveling Kit [1 to 3.5-inch lift]
Spacer Lift, or Leveling 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.
- Coil Spring spacer
- On-top strut spacers
- Preload Collar
- Bilstein 5100 Series, adjustable struts
- Bilstein 6100 Series, adjustable struts
- Using lift springs on struts
- Higher-rate strut springs
- Adjustable coil over struts
Spring lift kit

These kits cause the upper arms to angle downward toward the ball joints. Spring kits remove the factory rake angle and lift the rear of the vehicle about 1.5" - 2.5"
- Coil Spring spacer
- On-top strut spacers
- Preload Collar
- Bilstein 5100 Series, adjustable struts
- Bilstein 6100 Series, adjustable struts
- Using lift springs on struts
- Higher-rate strut springs
- Adjustable coil over struts
Spring Lift with Cradle Drop Kit
Cradle Drop Kit

These kits cause the upper arms to angle downward toward the ball joints. 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 by 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.
Spring lift kit

Spring kits on the front struts
- Coil Spring spacer
- On-top strut spacers
- Preload Collar
- Bilstein 5100 Series, adjustable struts
- Bilstein 6100 Series, adjustable struts
- Using lift springs on struts
- Higher-rate strut springs
- Adjustable coil over struts
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.

Maintenance

Every 3,000-5,000 miles: Grease the ball joint with lithium complex grease fortified with moly, until you see the boots swell (3-4pumps). Grease the arm bushings with the same grease until you see grease pushing out from the EZ Lube ports.

Jba Setting New Standards

Ball Joint Construction

See why the JBA ball joint works best for the weekend warrior.

90°Range of Motion

The JBA Ball Joint gives you 90 degrees range of motion.

JBA EZ Lube Bushings

Introducing our proprietary EZ Lube bushings! Patented Grease channels and pressure relief valves*

EZ LUBE Bushing U.S. Patent No. 11,293,511 issued April 5th 2022

Product Videos

Product faqs

Does your vehicle wander off the road after you installed your lift kit?

The JBA upper control arms will fix your problem! No more driving with your hands gripping tightly on the steering wheel to keep your vehicle in the center of the road at 65 miles per hour. Our upper control arms have 3 degrees of built-in caster.

What is more caster?

'More caster' is the top ball joint moved back toward the cab and the lower ball joint moved forward away from the cab. The angle between the two ball joints is the caster. We have moved the upper ball joint back to give the alignment tech the ability to move the lower ball joint forward. So with the lift kit, you get between 3 & 4.5 degrees of caster, giving the vehicle superior handling on and off the road.

How easy are the JBA arms to maintain?

The JBA upper control arms have 3 grease fittings on each arm. These grease fittings should be greased every 3000 to 5000 miles or when you change your engine oil. If you go in mud pits or across streams with the vehicle, grease the ball joint after you are done for the day.

What is an EZ lube bushing?

JBA has a patent on our control arm bushings. The EZ lube bushings have grease ports with a check valve. When you pump grease in the grease ports it builds up pressure and flows all around the ports in the bushing. When the ports are full the excess grease flows out over the check valves on the flange of the bushings. With the JBA EZ Lube bushing, there is NO need to loosen the mounting bolts to release the grease pressure. These bushings will save you about 30 minutes of maintenance! The bushings are Synthetic Elastomer.

What is Synthetic Elastomer?

Synthetic Elastomer is a long-chained polymer with many urethane constituents. Over the years the formulation has evolved to yield stronger, yet softer compounds ideal for on and off-road applications. As the compound advanced to yield higher tensile strength, elasticity, and dynamic load capacity, JBA uses the bushing to help aid and tune suspension geometry and they will not squeak like polyurethane bushings.

What grease should I use in the JBA UCAs?

We recommend MOLY EP LITHIUM GREASE. Mobilgrease XHP™ 222 Special grease is an extended service lithium complex grease intended for a wide variety of applications and severe operating conditions. This grease is designed to outperform conventional products by applying cutting-edge, proprietary, lithium complex manufacturing technology. It is formulated to provide excellent high-temperature performance with superb adhesion, structural stability, and resistance to water contamination. This grease has a high level of chemical stability and offers excellent protection against rust and corrosion. This grease features high dropping points and a maximum recommended operating temperature of 140º C (284°F). Mobilgrease XHP 222 Special grease available in NLGI grades 2 or 3 with an ISO VG 220 base oil viscosity.

Mobilgrease XHP 222 Special grease is designed for a wide range of applications including the industrial, automotive, construction, and marine sectors. Their performance features make them ideal for operating conditions including high temperature, water contamination, shock loading, and extended re-lubrication operations. Mobilgrease XHP 222 Special is an extreme pressure grease fortified with 0.75% molybdenum disulfide that protects from wear under conditions pivoting and other conditions that lead to loss of oil film.

What ball joint do we use in the control arms?

We have CNC machines to make our ball joints out of 4140 steel. The ball joints have 90 degrees range of motion. The ball and socket are protected from the elements with a 100% sealed boot. We Cerakote the outside of the housing to protect it from the elements. There is a grease fitting on the top center of the ball joint where we recommend using a grease gun and adding 3 pumps of grease every time you change your oil and when you are done adventuring through mud pits and streams.

Why don't we use the uni-ball joint?

The Uni-Ball is designed for offroad racing applications, these vehicles are disassembled and they replace worn parts on the vehicle after every race. In other words, the Uni-Ball is not designed for the everyday weekend warrior who uses their vehicle for regular transportation more than they go off-road. The open design of the Uni-Ball allows dust, dirt, salt, and other debris to enter the component and wear it out prematurely. The JBA Ball Joint, on the other hand, has a sealed construction that keeps debris and the elements out, extending the life of the joint and allowing you to use it in your daily vehicle. The uni-ball only has 33 degrees range of motion vs the JBA ball joint with 90 degrees.

What Wheel & Tire Combo works with JBA-7.0.HC.EZ?

We moved the guest out more on the JBA UCAs to get more strut clearance and down travel, with doing that there is interference with oversize tires on factory wheels.

Additional information

As seen in fourwheeler.com Magazine!

Find more info at:

https://youtu.be/mu9cXj72Mzc Unboxing video
https://youtu.be/Jt5a0fUMR00 install video short
https://youtu.be/erNzKSIfBV8 Install video long
tacomaworld.com
tacomaforum.com
fjcruiserforums.com
4runners.com
toyotanation.com
T4R.org
fourwheeler.com

Tire sizes that work well with the JBA-7.0.HC.EZ UCAs on factory wheels, Wheel offset chart at bottom of this page.

265/75R16 tire 31.6" x 10.4" on factory wheels
275/70R17 tire 32.2" x 10.8" on factory wheels
255/75R17 tires 32.1" x 10" on factory wheels
275/65R18 tires 32.1" x 10.8" on factory wheels
245/75R17 tires 31.5" x 9.6" on factory wheels
Any tire that is 32.2" diameter and smaller there is no fitment problem.

To check your tire size go to https://tiresize.com/calculator/
To check your wheel size and backspace go to https://www.wheel-size.com/

The charts below will help you see what Tacoma wheel and tire combo will clear the JBA-7.0.HC.EZ UCAs.
Note: The critical dimensions are tire diameter, any tire over 32.5", the width of the tire, width of the wheel & wheel backspace or offset. This is only tire a-arm clearance, you may still need to do body mount chop and clearance of the wheel wells and front bumper.

What you need from your Tacoma, tire width, wheel width & wheel backspace

Wheel offset chart at bottom of this page.

Tacoma Oversize tires

33 x 12.5" wide tire:
12.5" wide tire, if the wheel is 7" wide, you need a 3.25" backspace or smaller to clear the JBA ucas.
12.5" wide tire, if the wheel is 7.5" wide, you need a 3.50" backspace or smaller to clear the JBA ucas.
12.5" wide tire, if the wheel is 8" wide, you need a 3.75" backspace or smaller to clear the JBA ucas.
12.5" wide tire, if the wheel is 8.5" wide, you need a 4.00" backspace or smaller to clear the JBA ucas.
12.5" wide tire, if the wheel is 9" wide, you need a 4.25" backspace or smaller to clear the JBA ucas.
12.5" wide tire, the above will have .225” tire clearance to the JBA arms at full lock of the steering wheel, with that wheel and tire setup. If you need a smaller backspace a wheel spacer is needed, most common spacer is 1.25" thick. This is the only tire to a-arm clearance, you may still need to do body mount chop and clearance of the wheel wells and front bumper.

315/70 R17 (34.4" x 12.4") 12.4" wide tire:
12.4" wide tire, if the wheel is 7" wide, you need a 3.50" backspace or smaller to clear the JBA ucas.
12.4" wide tire, if the wheel is 7.5" wide, you need a 3.75" backspace or smaller to clear the JBA ucas.
12.4" wide tire, if the wheel is 8" wide, you need a 4.00" backspace or smaller to clear the JBA ucas.
12.4" wide tire, if the wheel is 8.5" wide, you need a 4.25" backspace or smaller to clear the JBA ucas.
12.4" wide tire, if the wheel is 9" wide, you need a 4.50" backspace or smaller to clear the JBA ucas.
12.4" wide tire, the above will have .025” tire clearance to the JBA arms at full lock of the steering wheel, with that wheel and tire setup. If you need a smaller backspace a wheel spacer is needed, most common spacer is 1.25" thick. This is only tire to a-arm clearance, you may still need to do body mount chop and clearance the wheel wells and front bumper.

295/75 R16 (33.4" x 11.6") 11.6" wide tire:
11.6" wide tire, if the wheel is 7.0" wide, you need a 3.75" backspace or smaller to clear the JBA ucas.
11.6" wide tire, if the wheel is 7.5" wide, you need a 4.00" backspace or smaller to clear the JBA ucas.
11.6" wide tire, if the wheel is 8" wide, you need a 4.25" backspace or smaller to clear the JBA ucas.
11.6" wide tire, if the wheel is 8.5" wide, you need a 4.50" backspace or smaller to clear the JBA ucas.
11.6" wide tire, if the wheel is 9" wide, you need a 4.75" backspace or smaller to clear the JBA ucas.
11.6" wide tire, the above will have .175” tire clearance to the JBA arms at full lock of the steering wheel, with that wheel and tire setup. If you need a smaller backspace a wheel spacer is needed, most common spacer is 1.25" thick. This is only tire to a-arm clearance, you may still need to do body mount chop and clearance the wheel wells and front bumper.

285/70 R17 (32.7" x 11.2"), BFG K02s at 285/75 R16 (32.8" x 11.2") 11.2" wide tire:
11.2" wide tire, if the wheel is 7.0" wide, you need a 4.00" backspace or smaller to clear the JBA ucas.
11.2" wide tire, if the wheel is 7.5" wide, you need a 4.25" backspace or smaller to clear the JBA ucas.
11.2" wide tire, if the wheel is 8" wide, you need a 4.50" backspace or smaller to clear the JBA ucas.
11.2" wide tire, if the wheel is 8.5" wide, you need a 4.75" backspace or smaller to clear the JBA ucas.
11.2" wide tire, if the wheel is 9" wide, you need a 5.00" backspace or smaller to clear the JBA ucas.
11.2" wide tire, the above will have .125” tire clearance to the JBA arms at full lock of the steering wheel, with that wheel and tire setup. If you need a smaller backspace a wheel spacer is needed, most common spacer is 1.25" thick. This is only tire to a-arm clearance, you may still need to do body mount chop and clearance the wheel wells and front bumper.

275/70 R18 (33.2" x 10.8") 10.8" wide tire:
10.8" wide tire, if the wheel is 7.0" wide, you need a 4.25" backspace or smaller to clear the JBA ucas.
10.8" wide tire, if the wheel is 7.5" wide, you need a 4.50" backspace or smaller to clear the JBA ucas.
10.8" wide tire, if the wheel is 8.0" wide, you need a 4.75" backspace or smaller to clear the JBA ucas.
10.8" wide tire, if the wheel is 8.5" wide, you need a 5.00" backspace or smaller to clear the JBA ucas.
10.8" wide tire, if the wheel is 9" wide, you need a 5.25" backspace or smaller to clear the JBA ucas.
10.8" wide tire, the above will have .075” tire clearance to the JBA arms at full lock of the steering wheel, with that wheel and tire setup. If you need a smaller backspace a wheel spacer is needed, most common spacer is 1.25" thick. This is only tire to a-arm clearance, you may still need to do body mount chop and clearance the wheel wells and front bumper.

255/85 R16 (33.10" x 10") 10.0" wide tire:
10.0" wide tire, if the wheel is 7.0" wide, you need a 4.50" backspace or smaller to clear the JBA ucas.
10.0" wide tire, if the wheel is 7.5" wide, you need a 4.75" backspace or smaller to clear the JBA ucas.
10.0" wide tire, if the wheel is 8.0" wide, you need a 5.00" backspace or smaller to clear the JBA ucas.
10.0" wide tire, if the wheel is 8.5" wide, you need a 5.25" backspace or smaller to clear the JBA ucas.
10.0" wide tire, if the wheel is 9" wide, you need a 5.5" backspace or smaller to clear the JBA ucas.
10.0" wide tire, the above will have .225” tire clearance to the JBA arms at full lock of the steering wheel, with that wheel and tire setup. If you need a smaller backspace a wheel spacer is needed, most common spacer is 1.25" thick. This is only tire to a-arm clearance, you may still need to do body mount chop and clearance the wheel wells and front bumper.

Wheel Width	Wheel Backspace in Inches
		3.25	3.50	3.75	4.00	4.25	4.50	4.75	5.00	5.25	5.50	5.75
	5.0	6	12	19	25	32	38	44	51	57	63	69
	5.5	0	6	12	19	25	32	38	44	51	57	63
	6.0	-6	0	6	12	19	25	32	38	44	51	57
	6.5	-12	-6	0	6	12	19	25	32	38	44	51
	7.0	-19	-12	-6	0	6	12	19	25	32	38	44
	7.5	-25	-19	-12	-6	0	6	12	19	25	32	38
	8.0	-32	-25	-19	-12	-6	0	6	12	19	25	32
	8.5	-38	-32	-25	-19	-12	-6	0	6	12	19	25
	9.0	-44	-38	-32	-25	-19	-12	-6	0	6	12	19
	9.5	-51	-44	-38	-32	-25	-19	-12	-6	0	6	12
	10.0	-57	-51	-44	-38	-32	-25	-19	-12	-6	0	6
	10.5	-63	-57	-51	-44	-38	-32	-25	-19	-12	-6	0
	11.0	-69	-63	-57	-51	-44	-38	-32	-25	-19	-12	-6
	11.5	-76	-69	-63	-57	-51	-44	-38	-32	-25	-19	-12
	12.0	-83	-76	-69	-63	-57	-51	-44	-38	-32	-25	-19