Skip to content

Rough Country 78600U 4 Inch Jeep Long Arm Upgrade Kit 07-18 Wrangler JK Rough Country

SKU ds_DHTP_78600U
Proudly Canadian

Albertan Owned

Supporting Canadian truckers since 2018
Secure Payments

Financing Available

SSL encrypted checkout with financing options
Trusted Brands

Top-Quality Suppliers

Authorized dealer for Fox, Bilstein, BFGoodrich & 50+ brands
Sold out
Original price $2,646.95
Original price $2,646.95 - Original price $2,646.95
Original price $2,646.95
Current price $2,579.79
$2,579.79 - $2,579.79
Current price $2,579.79
Availability:
Out of stock
Description

Transform your 4in kit into a full-fledge long arm setup with Rough Country's 4in Long Arm Upgrade Kit. This incredible upgrade converts your Rough Country 4in standard or 4in X-series kit into an extremely capable 4-link Long Arm suspension design.

This upgrade gives your Jeep incredible flex and unbelievable clearance at a fraction of the cost of buying an entirely new kit. The 4-link setup includes a full set of front and rear upper and lower adjustable control arms giving you full control to adjust the wheelbase and pinion angle.

Each arm features Rough Country's adjustable flex joints with Clevite rubber bushings and is constructed out of durable heavy-wall DOM tubing for a long lifespan of flex and performance. All brackets are made of a thick 1/4in thick high tensile strength plate steel.

Rough Country's 4in kit boasts an easier install process than most long arm kits, with no welding and no removal of the factory crossmember Required for installation. The kit also includes extended stainless steel brake lines and coil correction plates making it that much faster and easier to install. Includes a Lifetime Replacement Guarantee!

Features:

  • Incredible articulation
  • No welding Required
  • True 4-link setup with new, longer travel arms
  • Prevents binding and rear-steer
  • Coil correction plates correct the rear coil spring angle by 10 degrees, allowing them to function more effeciently
  • Gain unparalelled axle flex while keeping pinion angles optimized
  • X-Flex control arm features:
    • Clevite brand OEM style rubber bushings
    • Flex joints are fully rebuildable
    • Flex joints feature a massive 2.5 Inch diameter body and 1.25 inch thread
    • Fully greasable

Details:

  • Sold As Kit
  • Doors 4 Door
  • Drive 2WD|4WD
  • Lift Height 4.0 inch
  • Mount Style Bolt On
  • Thickness 0.25 inch
  • Front Components Upper adjustable control arms with flex joints Lower adjustable control arms with flex joints
  • Rear Components Upper adjustable control arms with flex joints



Specifications

brand_logo https://www.asapnetwork.org/sites/default/files/brands/icons/rough%20country%20asap.jpg
Description_ASC 2007-2018:4WD:Jeep:Wrangler JK (2 Door);2007-2010:2WD:Jeep:Wrangler JK Unlimited;2007-2018:4WD:Jeep:Wrangler JK Unlimited
Description_ASC An upgraded front and rear drive shaft is HIGHLY recommended. ONLY for models equipped with a 4-6" suspension lift.
Description_ASM 2007-2018:4WD:Jeep:Wrangler JK (2 Door)2007-2010:2WD:Jeep:Wrangler JK Unlimited2007-2018:4WD:Jeep:Wrangler JK Unlimited
Description_ASM 2007-2018:4WD:Jeep:Wrangler JK (2 Door);2007-2010:2WD:Jeep:Wrangler JK Unlimited;2007-2018:4WD:Jeep:Wrangler JK Unlimited
Description_ASM 2007-2018:4WD:Jeep:Wrangler JK; 2007-2018:4WD:Jeep:Wrangler JK Unlimited; 2007-2018:2WD:Jeep:Wrangler JK Unlimited
Description_DEF Suspension Trailing Arm / Stabilizer Bar Kit
Description_DES 4in Jeep Long Arm Upgrade Kit (07-18 Wrangler JK)
Description_DES Control Arm Upgrade Kit
Description_EXT Control Arm Upgrade Kit; 4 in.; Front/Rear/Upper/Lower; Adjustable Flex Joints w/Cleveite Rubber Bushings; Durable Heavy Wall DOM Tubing; 1/4in Thick Tensile Strength Plate Steel;
Description_EXT Long Arm Upgrade Kit - Jeep Wrangler JK (2007-2018)
Description_FAB 10-Stage Variable Valving
Description_FAB Clevite Brand OEM Style Rubber Bushings
Description_FAB Coil Correction Plates Correct The Rear Coil Spring Angle
Description_FAB Flex Joints Are Fully Rebuildable
Description_FAB Flex Joints Feature A 2.5 in. Dia. Body And 1.25 in. Thread
Description_FAB Fully Greasable
Description_FAB High Pressure Nitrogen Charged
Description_FAB Prevents Binding And Rear-Steer
Description_FAB True 4-Link Setup With New Longer Travel Arms
Description_FAB X-Flex control arm features:
Description_INV Rough Country-Long Arm Upgrade Kit
Description_MKT Transform your 4in kit into a full-fledge long arm setup with Rough Country's 4in Long Arm Upgrade Kit. This incredible upgrade converts your Rough Country 4in standard or 4in X-series kit into an extremely capable 4-link Long Arm suspension design.This upgrade gives your Jeep incredible flex and unbelievable clearance at a fraction of the cost of buying an entirely new kit. The 4-link setup includes a full set of front and rear upper and lower adjustable control arms giving you full control to adjust the wheelbase and pinion angle. Each arm features Rough Country's adjustable flex joints with Clevite rubber bushings and is constructed out of durable heavy-wall DOM tubing for a long lifespan of flex and performance. All brackets are made of a thick 1/4in thick high tensile strength plate steel.Rough Country's 4in kit boasts an easier install process than most long arm kits, with no welding and no removal of the factory crossmember required for installation. The kit also includes extended stainless steel brake lines and coil correction plates making it that much faster and easier to install. Includes a Lifetime Replacement Guarantee!
Description_MKT Transform your 4in kit into a full-fledge long arm setup with Rough Countrys 4in Long Arm Upgrade Kit. This incredible upgrade converts your Rough Country 4in standard or 4in X-series kit into an extremely capable 4-link Long Arm suspension design.This upgrade gives your Jeep incredible flex and unbelievable clearance at a fraction of the cost of buying an entirely new kit. The 4-link setup includes a full set of front and rear upper and lower adjustable control arms giving you full control to adjust the wheelbase and pinion angle. Each arm features Rough Countrys adjustable flex joints with Clevite rubber bushings and is constructed out of durable heavy-wall DOM tubing for a long lifespan of flex and performance. All brackets are made of a thick 1/4in thick high tensile strength plate steel.Rough Countrys 4in kit boasts an easier install process than most long arm kits, with no welding and no removal of the factory crossmember required for installation. The kit also includes extended stainless steel brake lines and coil correction plates making it that much faster and easier to install. Includes a Lifetime Replacement Guarantee!
Description_SHO Control Arm Kit
Description_SHO Susp Lift Kits 4wd
doors 4 Door
drive 2WD|4WD
height 4.0
installation_time 8-10 hours
last_update 2023-04-18 14:01:28
length 34.25
lift_height 4.0 inch
mount_style Bolt On
prop_65_warning CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
sold_as Kit
Thickness 0.25 inch
Universal No
vehicle_type Jeep
Warranty Lifetime Replacement Guarantee
weight 60.9
width 14.63
Fitment
Here's What OUR CUSTOMERS Have to Say:

Since 2018, We've Shipped Over 35,000 Automotive Parts to Canadian Customers.

4.6/5

+3,076 Verified Reviews

Easy to find and order. Customer service was responsive and helpful. It fit my vehicle and is protecting the back of it very well

Specific parts for my vehicle were easy to find Shipping was good and website is clear and easy to use

Very happy with the running boards, and the shipping was prompt.

Super easy, discount code worked well for my order

I will buy from here again.

Easy to use site, comprehensive descriptions. Relevant results

Quick shipping, good prices. Great selection of products.

Super easy, discount code worked well for my order

Easy buying process. Fast shipping. Lots of selection!

Great prices looking forward for possible tonneau cover from your site

Quick response and went the extra mile to answer my questions. Very professional and knowledgeable, having nothing but good things to say about the team at TPS

Fast and Quick,easy to understand The product was excellent and packaged extremely well, I would recommend them to all my friends.

The staff was very helpful and the price point is fair. Rafael was very accomodating and responsive to request to cancel order and reorder a different tuner.

Excellent service and price is good too Thanks.

Good service !

Purchasing process was extremely fast and simple, and the product came on time. 5/5 stars.

Need Help? We've Got Answers.

Find quick solutions to the most common questions about shipping, returns, compatibility, and support.

How do I know if a part fits my truck?

Use our vehicle filter by entering your truck’s year, make, and model. If you're unsure, our support team is happy to help.

Do you ship across Canada?

Yes! We ship to all provinces and territories in Canada. Free shipping is available on qualifying orders.

How long will it take to receive my order?

Delivery times vary depending on your location and item availability. Most orders arrive within 2–7 business days.

What is your return policy?

We accept returns within 30 days of delivery, as long as the item is unused and in its original packaging.

How can I contact customer support?

You can reach us via email, phone, or through the contact form on our website. Our team is ready to assist you.

Still have questions?

Our team is here to help — reach out and we'll get back to you as soon as possible.

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare