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RT Off-Road
Synergy Manufacturing
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Drivetrain & Differential

RT Off-Road Suspension Ball Joint Synergy Manufacturing Drivetrain & Differential

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RT Off-Road
Synergy Manufacturing
PartType
Suspension Ball Joint

Brand

Crown Automotive (11)
Dana Spicer (15)
ICON Vehicle Dynamics (3)
Omix-Ada (3)
ReadyLift (4)
TeraFlex (4)

Fitment

Direct Fit (8)

Axle Location

Front (2)

Axle Type

Dana 30 TJ|Dana 30 Reverse|Dana 44 (1)
Dana 30A KJ (1)

Lubeable

Is Lubeable (5)

Price Range

$100 to $199 (2)
$200 to $299 (2)
$300 to $399 (2)
$400 to $499 (2)

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RT Off-Road Suspension Ball Joint Synergy Manufacturing Drivetrain & Differential

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Synergy Manufacturing Jeep JK/WJ Heavy Duty Ball Joint Set - 8009-12

Part Number: SYN8009-12

Synergy Manufacturing Jeep JK/WJ Heavy Duty Ball Joint Set - 8009-12

5.0 5.0 (1)

How to Get it

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Ship to Home:

Only 4 left in Stock ?

Fitment: Direct Fit
Factory Replacement for Most Dana 44 and Dana 30 Applications
Fully Greasable
Sintered Metal On Bushing Design
Silicone Boot
2 Upper Ball Joints
2 Lower Ball Joints
Fits Jeep JK and WJ Including Rubicon
Made in the USA
California Residents: WARNING

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$250.00

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Synergy Manufacturing Jeep JK/WJ Heavy Duty Ball Joint Set - 8009-12

Part #: SYN8009-12

5.0 5.0 (1)

$250.00

Only 4 left in Stock ?

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How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

Only 4 left in Stock ?

Fitment: Direct Fit
Factory Replacement for Most Dana 44 and Dana 30 Applications
Fully Greasable
Sintered Metal On Bushing Design
Silicone Boot
2 Upper Ball Joints
2 Lower Ball Joints
Fits Jeep JK and WJ Including Rubicon
Made in the USA
California Residents: WARNING

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PROMOTIONS AUTOMATICALLY APPLIED

Lowest Price! Guaranteed! Request A Price Match

Qualifies for Free Shipping

4WP PROTECTION PLAN

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Synergy Manufacturing D30/D44 Heavy Duty Ball Joint Set (Upper & Lower) - 8009-1204

Part Number: SYN8009-1204

Synergy Manufacturing D30/D44 Heavy Duty Ball Joint Set (Upper & Lower) - 8009-1204

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Free! Curbside & In-Store Pickup: Select A Store Near You

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In-Stock Ships next business day ?

Fitment: Direct Fit
Set has one upper and one lower ball joint, two sets required per vehicle
New and improved ball joints
Compatible with all aftermarket axle shafts (including RCV) with no modifications needed
Fully greasable metal on metal design for prolonged life
Ball joint bearing surface area is considerably larger than stock due to elimination of the inner nylon liner for a longer lasting joint
Ball joint housing is manufactured from sintered graphite, bronze, and 1045 steel for a strong, smooth, bearing surface
Ball joint stud is manufactured from induction heat treated 4140 steel for maximum strength and smooth operation
Ball joint dust boot is made from wear/tear resistant black nitro-butile rubber (NBR)
12 month unlimited-warranty (see warranty information)
Synergy high performance grease (4119) recommended
Notes: Metal on metal ball joints require a small break-in period of typically 100-500 miles to fully "seat" the bearing surfaces. During this time the steering may feel "sticky" or slow to "return to center". Once broken in, the steering will be smooth and tight.
California Residents: WARNING

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$125.00

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Synergy Manufacturing D30/D44 Heavy Duty Ball Joint Set (Upper & Lower) - 8009-1204

Part #: SYN8009-1204

1.0 1.0 (1)

$125.00

In-Stock Ships next business day ?

+ Add to Wishlist

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EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

In-Stock Ships next business day ?

Fitment: Direct Fit
Set has one upper and one lower ball joint, two sets required per vehicle
New and improved ball joints
Compatible with all aftermarket axle shafts (including RCV) with no modifications needed
Fully greasable metal on metal design for prolonged life
Ball joint bearing surface area is considerably larger than stock due to elimination of the inner nylon liner for a longer lasting joint
Ball joint housing is manufactured from sintered graphite, bronze, and 1045 steel for a strong, smooth, bearing surface
Ball joint stud is manufactured from induction heat treated 4140 steel for maximum strength and smooth operation
Ball joint dust boot is made from wear/tear resistant black nitro-butile rubber (NBR)
12 month unlimited-warranty (see warranty information)
Synergy high performance grease (4119) recommended
Notes: Metal on metal ball joints require a small break-in period of typically 100-500 miles to fully "seat" the bearing surfaces. During this time the steering may feel "sticky" or slow to "return to center". Once broken in, the steering will be smooth and tight.
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

Lowest Price! Guaranteed! Request A Price Match

Qualifies for Free Shipping on Orders Over $149.99

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

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Synergy Manufacturing Jeep Dana 30/44 Heavy Duty Ball Joint Set - 4120

Part Number: SYN4120

Synergy Manufacturing Jeep Dana 30/44 Heavy Duty Ball Joint Set - 4120

4.3 4.3 (3)

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

In-Stock Ships next business day ?

Fitment: Direct Fit
Factory Replacement for Most Dana 44 and Dana 30 Applications
Fully Greasable
Sintered Metal On Bushing Design
Silicone Boot
2 Upper Ball Joints
2 Lower Ball Joints
Fits All Jeep TJ / LJ
Fits 90-01 Jeep YJ / ZJ / XJ
California Residents: WARNING

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- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

Lowest Price! Guaranteed! Request A Price Match

Qualifies for Free Shipping

$250.00

In-Stock Ships next business day ?

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Synergy Manufacturing Jeep Dana 30/44 Heavy Duty Ball Joint Set - 4120

Part #: SYN4120

4.3 4.3 (3)

$250.00

In-Stock Ships next business day ?

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

In-Stock Ships next business day ?

Fitment: Direct Fit
Factory Replacement for Most Dana 44 and Dana 30 Applications
Fully Greasable
Sintered Metal On Bushing Design
Silicone Boot
2 Upper Ball Joints
2 Lower Ball Joints
Fits All Jeep TJ / LJ
Fits 90-01 Jeep YJ / ZJ / XJ
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

Lowest Price! Guaranteed! Request A Price Match

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

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Synergy Heavy-Duty Adjustable Ball Joints (Non-Knurled) - 4127

Part Number: SYN4127

Synergy Heavy-Duty Adjustable Ball Joints (Non-Knurled) - 4127

Be the first to review

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

Only 1 left in Stock ?

Fitment: Direct Fit
07-18 Wrangler JK, 2 & 4 Door
99-04 Grand Cherokee WJ
Non-knurled version
Tightens sloppy steering
Designed to last the life of the vehicle
Never need to replace ball joints again
Best in class price/performance ratio
Kit includes all 4 ball joints and lower ball joint adjuster tool
Lower ball joints are rebuildable on the vehicle without removal
Lower Ball Joint bearing surfaces are CNC machined from 4140 steel, heat treated, induction hardened, and ferritic nitrocarburized for extreme wear resistance
Low profile dust boots are made from thick nitrobutile rubber
Protects the joint from contaminants and eliminate any chance of tearing
Zerk fittings included for trouble-free maintenance
Limited Lifetime Warranty
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

Lowest Price! Guaranteed! Request A Price Match

Qualifies for Free Shipping

$360.00

Only 1 left in Stock ?

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Synergy Heavy-Duty Adjustable Ball Joints (Non-Knurled) - 4127

Part #: SYN4127

$360.00

Only 1 left in Stock ?

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

Only 1 left in Stock ?

Fitment: Direct Fit
07-18 Wrangler JK, 2 & 4 Door
99-04 Grand Cherokee WJ
Non-knurled version
Tightens sloppy steering
Designed to last the life of the vehicle
Never need to replace ball joints again
Best in class price/performance ratio
Kit includes all 4 ball joints and lower ball joint adjuster tool
Lower ball joints are rebuildable on the vehicle without removal
Lower Ball Joint bearing surfaces are CNC machined from 4140 steel, heat treated, induction hardened, and ferritic nitrocarburized for extreme wear resistance
Low profile dust boots are made from thick nitrobutile rubber
Protects the joint from contaminants and eliminate any chance of tearing
Zerk fittings included for trouble-free maintenance
Limited Lifetime Warranty
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

Lowest Price! Guaranteed! Request A Price Match

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

No, thanks

Sign In Or Create an Account

Create An Account

Email Address

Password

Remember me

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Synergy Heavy-Duty Adjustable Ball Joints (Knurled) - 4127KN

Part Number: SYN4127KN

Synergy Heavy-Duty Adjustable Ball Joints (Knurled) - 4127KN

Be the first to review

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

In-Stock Ships next business day ?

Fitment: Direct Fit
07-18 Wrangler JK, 2 & 4 Door
99-04 Grand Cherokee WJ
Knurled version
Tightens sloppy steering
Designed to last the life of the vehicle
Never need to replace ball joints again
Best in class price/performance ratio
Kit includes all 4 ball joints and lower ball joint adjuster tool
Lower ball joints are rebuildable on the vehicle without removal
Lower Ball Joint bearing surfaces are CNC machined from 4140 steel, heat treated, induction hardened, and ferritic nitrocarburized for extreme wear resistance
Low profile dust boots are made from thick nitrobutile rubber
Protects the joint from contaminants and eliminate any chance of tearing
Zerk fittings included for trouble-free maintenance
Limited Lifetime Warranty
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

Lowest Price! Guaranteed! Request A Price Match

Qualifies for Free Shipping

$360.00

In-Stock Ships next business day ?

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

Synergy Heavy-Duty Adjustable Ball Joints (Knurled) - 4127KN

Part #: SYN4127KN

2.5 2.5 (2)

$360.00

In-Stock Ships next business day ?

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

In-Stock Ships next business day ?

Fitment: Direct Fit
07-18 Wrangler JK, 2 & 4 Door
99-04 Grand Cherokee WJ
Knurled version
Tightens sloppy steering
Designed to last the life of the vehicle
Never need to replace ball joints again
Best in class price/performance ratio
Kit includes all 4 ball joints and lower ball joint adjuster tool
Lower ball joints are rebuildable on the vehicle without removal
Lower Ball Joint bearing surfaces are CNC machined from 4140 steel, heat treated, induction hardened, and ferritic nitrocarburized for extreme wear resistance
Low profile dust boots are made from thick nitrobutile rubber
Protects the joint from contaminants and eliminate any chance of tearing
Zerk fittings included for trouble-free maintenance
Limited Lifetime Warranty
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

Lowest Price! Guaranteed! Request A Price Match

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

No, thanks

Sign In Or Create an Account

Create An Account

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Yes, I would like to receive emails with the latest deals and specials.

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RT Off-Road Heavy-Duty Ball Joint Set - RT21002

Part Number: RTORT21002

RT Off-Road Heavy-Duty Ball Joint Set - RT21002

Be the first to review

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Direct Fit
Heavy duty zero lash ball joint set
1 Upper and 1 Lower Ball Joint
Fits model 30 and 44 axles
Does one side only
California Residents: WARNING

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PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping on Orders Over $149.99

$111.99

On Backorder

Email me when this product comes in stock

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RT Off-Road Heavy-Duty Ball Joint Set - RT21002

Part #: RTORT21002

$111.99

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Direct Fit
Heavy duty zero lash ball joint set
1 Upper and 1 Lower Ball Joint
Fits model 30 and 44 axles
Does one side only
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

SHOP 4WP's HUGE SELECTION

Qualifies for Free Shipping on Orders Over $149.99

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

No, thanks

Sign In Or Create an Account

Create An Account

Email Address

Password

Remember me

Reset Password

An email is sent to .

Enter email address to change your password

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Yes, I would like to receive emails with the latest deals and specials.

Add to Wishlist

Synergy Manufacturing HD Adjustable Ball Joint Kit - 4123

Part Number: SYN4123

Synergy Manufacturing HD Adjustable Ball Joint Kit - 4123

Be the first to review

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Direct Fit
Tightens sloppy steering
Designed to last the life of the vehicle
Never need to replace ball joints again
Best in class price/performance ratio
Kit includes all 4 ball joints and lower ball joint adjuster tool
Patent pending lower ball joints are adjustable so they always have the correct amount of preload
Knurled and non-knurled ball joint housing options to fit any vehicle
Lower ball joints are rebuildable on the vehicle without removal
Lower ball joint bearing surfaces are CNC machined from 4140 steel, heat treated, induction hardened, and ferritic nitrocarburized for extreme wear resistance
Low profile dust boots are made from thick nitrobutile rubber (NBR) to protect the joint from contaminants and eliminate any chance of tearing
Zerk fittings included for trouble-free maintenance
Notes: Synergy 4119 high performance grease recommended
Knurled ball joints required when replacing knurled ball joints that have enlarged the axle end forging bores
Non-knurled ball joints recommended for replacing non-knurled ball joints
Compatible with RCV axle shafts
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

Lowest Price! Guaranteed! Request A Price Match

Qualifies for Free Shipping

$400.00

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

Synergy Manufacturing HD Adjustable Ball Joint Kit - 4123

Part #: SYN4123

$400.00

On Backorder

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

On Backorder

Fitment: Direct Fit
Tightens sloppy steering
Designed to last the life of the vehicle
Never need to replace ball joints again
Best in class price/performance ratio
Kit includes all 4 ball joints and lower ball joint adjuster tool
Patent pending lower ball joints are adjustable so they always have the correct amount of preload
Knurled and non-knurled ball joint housing options to fit any vehicle
Lower ball joints are rebuildable on the vehicle without removal
Lower ball joint bearing surfaces are CNC machined from 4140 steel, heat treated, induction hardened, and ferritic nitrocarburized for extreme wear resistance
Low profile dust boots are made from thick nitrobutile rubber (NBR) to protect the joint from contaminants and eliminate any chance of tearing
Zerk fittings included for trouble-free maintenance
Notes: Synergy 4119 high performance grease recommended
Knurled ball joints required when replacing knurled ball joints that have enlarged the axle end forging bores
Non-knurled ball joints recommended for replacing non-knurled ball joints
Compatible with RCV axle shafts
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

Lowest Price! Guaranteed! Request A Price Match

Qualifies for Free Shipping

4WP PROTECTION PLAN

Our Protection Plan covers your investment above and beyond the manufacturer's coverage. For only 10% more, if your item is damaged, fails or malfunctions, we'll replace it for free!

No, thanks

Sign In Or Create an Account

Create An Account

Email Address

Password

Remember me

Reset Password

An email is sent to .

Enter email address to change your password

After you submit your email address, you'll receive an email a link that will let you change your password.

Email*

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Email Address

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First Name *:

Last Name *:

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Must be at least 8 alphanumeric characters long and must contain at least 1 number.

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Yes, I would like to receive emails with the latest deals and specials.

Add to Wishlist

Synergy Manufacturing HD Adjustable Knurled Ball Joint Kit - 4123KN

Part Number: SYN4123KN

Synergy Manufacturing HD Adjustable Knurled Ball Joint Kit - 4123KN

Be the first to review

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

Only 1 left in Stock ?

Fitment: Direct Fit
Tightens sloppy steering
Designed to last the life of the vehicle
Never need to replace ball joints again
Best in class price/performance ratio
Kit includes all 4 ball joints and lower ball joint adjuster tool
Patent pending lower ball joints are adjustable so they always have the correct amount of preload
Knurled and non-knurled ball joint housing options to fit any vehicle
Lower ball joints are rebuildable on the vehicle without removal
Lower ball joint bearing surfaces are CNC machined from 4140 steel, heat treated, induction hardened, and ferritic nitrocarburized for extreme wear resistance
Low profile dust boots are made from thick nitrobutile rubber (NBR) to protect the joint from contaminants and eliminate any chance of tearing
Zerk fittings included for trouble-free maintenance
Notes: Synergy 4119 high performance grease recommended
Knurled ball joints required when replacing knurled ball joints that have enlarged the axle end forging bores
Non-knurled ball joints recommended for replacing non-knurled ball joints
Compatible with RCV axle shafts
California Residents: WARNING

+ View More Specs

- View Less Specs

PROMOTIONS AUTOMATICALLY APPLIED

Lowest Price! Guaranteed! Request A Price Match

Qualifies for Free Shipping

$400.00

Only 1 left in Stock ?

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

Synergy Manufacturing HD Adjustable Knurled Ball Joint Kit - 4123KN

Part #: SYN4123KN

$400.00

Only 1 left in Stock ?

Email me when this product comes in stock

+ Add to Wishlist

LOW PRICE GUARANTEE

EASY RETURNS

How to Get it

Free! Curbside & In-Store Pickup: Select A Store Near You

Ship to Home:

Only 1 left in Stock ?

Fitment: Direct Fit
Tightens sloppy steering
Designed to last the life of the vehicle
Never need to replace ball joints again
Best in class price/performance ratio
Kit includes all 4 ball joints and lower ball joint adjuster tool
Patent pending lower ball joints are adjustable so they always have the correct amount of preload
Knurled and non-knurled ball joint housing options to fit any vehicle
Lower ball joints are rebuildable on the vehicle without removal
Lower ball joint bearing surfaces are CNC machined from 4140 steel, heat treated, induction hardened, and ferritic nitrocarburized for extreme wear resistance
Low profile dust boots are made from thick nitrobutile rubber (NBR) to protect the joint from contaminants and eliminate any chance of tearing
Zerk fittings included for trouble-free maintenance
Notes: Synergy 4119 high performance grease recommended
Knurled ball joints required when replacing knurled ball joints that have enlarged the axle end forging bores
Non-knurled ball joints recommended for replacing non-knurled ball joints
Compatible with RCV axle shafts
California Residents: WARNING

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RT Off-Road Suspension Ball Joint Synergy Manufacturing Drivetrain & Differential

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RT Off-Road Suspension Ball Joint Synergy Manufacturing Drivetrain & Differential

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$360.00

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