Radius Arm Kit

Jeep TJ, LJ, MJ, XJ, ZJ, DIY Front Long Arm Upgrade Kit

Your Price: $430.00

Looking to upgrade the front suspension to long arms on your TJ, LJ, MJ, ZJ, or XJ,? This kit has all of the parts that the do it yourself fabricator needs to add front long arms to their Jeep.

Part Number: B4W0070K

LEAD TIME: Out of Stock

Description & Installation Instructions
Customer Reviews
Questions and Answers

Looking to upgrade the front suspension to long arms on your TJ, LJ, MJ, ZJ, or XJ? This kit has all of the parts that the do it yourself fabricator needs to add front long arms to their Jeep.

Kit Includes:

2 Right Hand Thread 1-1/4" Heat Treated Chromoly Heim Joints

4 1-9/16 High Misalignment Spacers

2 Right Hand 1-1/4" Jam Nuts

2 Right Hand Thread 1-1/4" Heavy Wall Tube Inserts

2 Right Hand Thread 7/8-3/4" Heat Treated Chromoly Heim Joints

2 Right Hand Thread 7/8" Jam Nuts

2 Right Hand Thread 7/8" Tube Inserts

4 High Misalignment Spacers 3/4"-5/8"

2 DOM Sleeve And Poly Bushings

2 Radius Arm Brackets

2 Upper Control Arm Brackets

2 Frame Link Mount Brackets

4 9/16" Bolts With Nylock Nuts

2 5/8" Bolts With Nylock Nuts

2 3 Ft Sections Of 2" O.D. 1/4" Wall DOM

2 2 Ft Sections Of 1.5" O.D. 1/8" Wall DOM

Q: Do these come with instructions how to install? Is there any other parts needed for this install?

Asked by: Dennis - 3/18/2019

A: This kit does not include any instructions. This kit is a DIY kit that is intended to be a base for building a custom long arm suspension for the front of your Jeep. All of the components are included for the front suspension on a Jeep TJ, other components may be needed for your particular installation depending on how you decide to setup your suspension.

Answer provided by: Matt Pless (4/5/2019)

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Q: Can't you offer this kit with the option of upper heim or Eduro joints?

Asked by: Stephen - 4/1/2019

A: Thanks for the question. We can set up a kit to your specifications. Just give us a call and we can piece together a kit for you in no time. 828-551-7616

Answer provided by: Joe Ledford (4/4/2019)

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Q: Does this fit the rear of a jeep tj or only the front ?

Asked by: Antoine - 4/2/2019

A: This kit is designed to be used on the front of a Jeep TJ.

Answer provided by: Matt Pless (4/5/2019)

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Q: Will this kit work with your Dana 60 conversion kit?

Asked by: Jonathan - 2/24/2020

A: Everything would work except you may run into some issues with the short radius links coming into contact with the truss top. We have not tested this yet but we know it is an issue with other manufacturers.

Answer provided by: Conner (2/25/2020)

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Q: will this work on a wj with 12inch lift ?

Asked by: kevin - 4/18/2020

A: Since this is a radius arm kit we would not recommend it be used on a WJ since they have independent control arms, if you are looking for a 4 link for that vehicle I'd recommend one of our universal kits.

Answer provided by: Conner (4/20/2020)

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Q: I can't tell if the upper link to the axle is a bolt on to the original Dana 30 brackets or are they weld on. I know this is a builders kit but i am curious what the bracket is for on the upper arm, axle end is for.

Asked by: Hal - 11/26/2020

A: As of 11/10/2020 all of our brackets are weld on.

Answer provided by: Clayton Arrowood (11/30/2020)

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Q: I was wondering what width the frame side brackets are for the diy front long arm upgrade kit because I would want to upgrade them to either heim or joint instead of bushing for better articulation

Asked by: gustavo covarrubias - 8/12/2021

A: They are 2 5/8" mounting width with a 9/16" bolt hole

Answer provided by: AJ Morgan (8/20/2021)

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Q: What is the length of the arms? I'm looking for a 36" arm to complement a 6.5" lift. Thanks!

Asked by: William Craig - 10/27/2021

A: This comes with two 3 Ft Sections Of 2" O.D. 1/4" Wall DOM.

Answer provided by: Clayton Arrowood (10/27/2021)

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Q&A

Jeep TJ, LJ, MJ, XJ, ZJ, DIY Front Long Arm Upgrade Kit

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Average Customer Ratings

Q: Do these come with instructions how to install? Is there any other parts needed for this install?

Q: Can't you offer this kit with the option of upper heim or Eduro joints?

Q: Does this fit the rear of a jeep tj or only the front ?

Q: Will this kit work with your Dana 60 conversion kit?

Q: will this work on a wj with 12inch lift ?

Q: I can't tell if the upper link to the axle is a bolt on to the original Dana 30 brackets or are they weld on. I know this is a builders kit but i am curious what the bracket is for on the upper arm, axle end is for.

Q: I was wondering what width the frame side brackets are for the diy front long arm upgrade kit because I would want to upgrade them to either heim or joint instead of bushing for better articulation

Q: What is the length of the arms? I'm looking for a 36" arm to complement a 6.5" lift. Thanks!

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