2018-2025
2007-2018
1997-2006
1976-1986
Installation Time
(approx) a Day
Difficulty Level:
Light to Moderate mechanical skill required.
Installation Guides
No guide available for this part yet.
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Motobilt Back Half Frame Kit; Bare Steel (97-06 Jeep Wrangler TJ)Find parts that fit my vehicle
Item J167650
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1 Reviews
Our Price
$599.00 kit
Ship to: 43215
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Product Information
Description, Reviews, Q&A, Specs & Installation
Description
The Motobilt Jeep TJ back half kit is the most complete on the market. This kit replaces the back section of frame rails to allow space to clear coilover shocks and increase departure angle. How does the the Jeep TJ back half kit do this? The Motobilt kit moves the frame rails from inside the wheel opening to the bottom side of the tube. In doing so the bumper location is moved up to just below the tailgate. This kit requires an experienced welder/fabricator to install.
Building custom four link suspension on a Jeep TJ does not have to be difficult. The Motobilt Jeep TJ back half kit is an effective way to gain clearance for suspension components like coilovers shocks, bypass shocks, or ORI struts. The Jeep TJ Back Half Kit moves the frame rails to the bottom side of the tube. The frame rails will mount directly to the bottom side of the rear floor board for a tight compact fit. It should be noted the kit requires cutting sheet metal on the body just below the tailgate to allow the frame rails to extend out. The bumper is then attached in this new location. The Motobilt kit comes complete with a rear bumper.
What does the Motobilt Jeep TJ back half kit include? The kit includes 7 parts total in the shipment. Two lower frame rails sections and two upper frame rail sections. The installer will joint the upper and lower sections together during the mock up stage of the installation. The fifth part is the rear bumper assembly. The rear bumper comes complete with 3/4 inch thick d-ring mounts. The kit also comes with two end caps for the bumper and frame. These are welded in place to attach the rear bumper.
All of the parts of this kit other than the d-ring mounts are fabricated from 3/16 inch high strength steel plate and formed on a press brake. Unlike some of the other kits on the market we do not require you to purchase square tubing to complete the project. With that said we provide a flat point on the back center of the rear bumper for the installer to triangulate some round tubing if required. The 3/4 inch thick high strength steel plate d-ring mounts pass all the way through the rear bumper and weld in place on both sides for ultimate strength. The d-rings have a 1 inch hole in them.
- Jeep TJ frame back half kit over 8 inches narrower than stock.
- Fabricated from 3/16 inch high strength steel plate
- Press brake formed
- 3/4 inch thick high strength steel plate d-ring mounts
- Sold as kit
- Weight: 88lbs (approx.)
Kit includes 7 parts total in the shipment
- Two lower frame rails sections and two upper frame rail sections
- The installer will joint the upper and lower sections together during the mock up stage of the installation
- The fifth part is the rear bumper assembly. The rear bumper comes complete with 3/4 inch thick d-ring mounts
- The kit also comes with two end caps for the bumper and frame. These are welded in place to attach the rear bumper
Note:
- This kit will not work with the factory gas tank or the Motobilt stretch tank. Most people mount a fuel cell in the bed of the Jeep
- The kit will not work with the factory coil springs
- This kit is designed for more advanced Jeep builds where suspension and driving requirements demand more space and clearance
- We provide a flat point on the back center of the rear bumper for the installer to triangulate-some round tubing if required
- A body lift is NOT required.
- When installing do not remove the body as the factory body mounts in the center of the floor board are used to locate the back half kit when installing.
- The frame needs to be cut at the begining of the bend. The frame rail section must be straight in order for the new frame rail sections to slide over the factory frame rails.
Fitment:
- 1997 Jeep Wrangler
- 1998 Jeep Wrangler
- 1999 Jeep Wrangler
- 2000 Jeep Wrangler
- 2001 Jeep Wrangler
- 2002 Jeep Wrangler
- 2003 Jeep Wrangler
- 2004 Jeep Wrangler
- 2005 Jeep Wrangler
- 2006 Jeep Wrangler
Motobilt MB3008
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (2) Lower Frame Rails Sections
- (2) Upper Frame Rail Sections
- (1) Rear Bumper Assembly
- (2) End Caps for the Bumper and Frame
5.0
Customer Reviews (1)
Apr 11, 2024
2003 - BKarmy
Installation Time: Full Day
Back half
Great product good directions made my stretch, wheelbase easy.
Fit 5/5
Appearance 5/5
Quality 5/5
Bang For Your Buck 5/5
Reviews of Motobilt Exterior products have an average rating of 4.8 out of 5
Mar 12, 2025
Review shared from Motobilt Gas Jug Mount for 5-Gallon VP Racing Gas Jug; Bare Steel (Universal; Some Adaptation May Be Required)
2005 Rubicon Unlimited -
Best mount ever
This is the best mount for your VP Racing gas jug. Super strong an convenient for all off road trip. Keep your jugs locked and ready for your next adventure.
Jan 7, 2025
Review shared from Motobilt Blank Corner Guards; Bare Steel (04-06 Jeep Wrangler TJ Unlimited)
2000 - PurpleTJ6
Awesome Corners
These blank corners are great, fit and quality top notch! Being blank install takes a bit longer as I had to cut out all openings and drill for accessory mounting! I bought blanks as I was building a TJ-6 and the length was spot on but the wheel opening is 5" farther back than the standard LJ
Sep 18, 2024
Review shared from Motobilt Crusher Series Front Bumper with Stinger; Bare Steel (87-06 Jeep Wrangler YJ & TJ)
2006 Wrangler Unlimited - TonyNJ
Great Bumper
Love this bumper, I initially gave it a poor review due to fitment issues however, motobilt contacted me promptly to resolve the issue. Outstanding quality product and even better customer service, can't recommend this company enough!
Jul 12, 2024
Review shared from Motobilt Crusher Series Front Bumper with Ball Bar; Bare Steel (87-06 Jeep Wrangler YJ & TJ)
2006 Rubicon Unlimited - Branda
Crusher Front Bumper is the bomb!
This was an easy install and fits like a glove. Very pleased with it. Only wish it had more locations to mount lights.
Jul 5, 2024
Review shared from Motobilt Hood Vent Kit (87-06 Jeep Wrangler YJ & TJ)
2005 Rubicon - 2005JeepRubicon
2005 Jeep Wrangler TJ Rubicon hood vent
Excellent Motobilt hood vent. Easy install just take your time and make sure your alignment is good and start drilling. Place screw in each hole after drilling. Painting takes a few days. Don’t rush it.
Jul 2, 2024
Review shared from Motobilt High Clearance Body Mount Kit; Bare Steel (97-06 Jeep Wrangler TJ)
2003 Wrangler - MichaelS.
BEEFY
These are the best replacement on the market. I had them installed by a shop because welding is required. Definitely recommend just know getting someone to weld them properly is quite pricey.
May 31, 2024
Review shared from Motobilt Spare Tire Delete Kit with License Plate Light; Bare Steel (87-06 Jeep Wrangler YJ & TJ)
1997 - ChristinesTJ
A few issues but easily fixed.
I mean, c'mon, it's Motobilt. Of course it looks great. Only negative (reason for -1 star) is there are some very sharp burs on the edges, especially where the tag light wires feed through. I didn't file them down because I didn't want to expose bare metal. I instead used wire loom on the wires and rubber washers behind the plate so it wouldn't come in contact with my freshly painted tailgate. Also, the hardware provided didn't work for mine but I opted to go with black allen head bolts anyways to match my hinges. Much cleaner look, Maybe they should go that route as well.
May 13, 2024
Review shared from Motobilt Gas Tank Skid Plate; Bare Steel (97-06 Jeep Wrangler TJ)
2006 Wrangler - Dunerdr
Excellent Upgrade
High quality materials and construction. The design has a very good appearance and fitment. I used a spray can truck bed paint to give it a durable finish. This was a one person install that didn't take very long to do. Run the tank as dry as you can to keep the weight down.
May 3, 2024
Review shared from Motobilt Tailgate Accessory Base Mount; Bare Steel (87-06 Jeep Wrangler YJ & TJ)
1997 Wrangler - Earth
Solid product
The steel is thick and the holes lined up properly. Good product.
Mar 28, 2024
Review shared from Motobilt Rock Crawler Rear Bumper with Hitch Receiver; Bare Steel (76-06 Jeep CJ7, Wrangler YJ & TJ)
2006 Rubicon Unlimited - Ijohns
Stout bumper!
Very well-built bumper perfect fitment looking forward to using it in the field.
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