Why a boxed A-Arm design?

A boxed arm will give you increased torsional strength for the strongest control arm design possible. There is more to a Thumper Fab boxed control arm than meets the eye. Underneath the steel cladding is a skeleton design that adds strength exactly where you need it and saves weight. Strength is important but unnecessary weight increases your unsprung mass and reduces your shock’s ability to compensate. The Thumper Fab design adds strength and reduces weight for optimal ride quality.

EASY INSTALLATION▸

We offer professionally installed bushings and ball joints for easy installation. When you select the options below, we take the hassle out of pressing in your bushings and ball joints yourself. Utilizing our precision press operation, we are able to ensure your bushings and ball joints are correctly installed and not hammered or pressed in a way that would reduce their quality and lifespan.

OEM Bushings – We offer OEM bushings for a high level of quality, vibration, and harshness control.

OEM Ball Joints – We do not recommend OEM ball joints for this kit. Our kit does allow you to reuse your stock ball joints but we recommend Uniball or Keller for extreme use.  

Uniball – Our uniball bearing replaces the use of a ball joint for extreme levels of performance and strength. Commonly used in harsh racing conditions. Our patent pending control arm design allows you to run either a uniball or a ball joint for your desired use! (Uniball will replace only the top ball joint, Keller will be run for the lower ball joint)

TF ELITE Ball Joints – Looking for the strongest, most durable ball joint on the market? Look no further than Thumper Fab's ELITE ball joints! These ball joints are made from 300M steel for maximum strength and wear resistance. They are also adjustable and greaseable for easy maintenance. Plus, they come with a lifetime warranty for your peace of mind. So if you're looking for the best of the best when it comes to ball joints, choose Thumper Fab's ELITE ball joints. You won't be disappointed!

Reuse bushings & ball joints – You also have the option to reuse your OEM bushings and ball joints. Maybe your Ranger is brand new or in great shape. Our patent pending control arms allow the choice to reuse your OEM hardware. We do recommend professional installation and the use of a press to ensure your original equipment can be removed and installed without damage.

SHOCK OPTIONS▸

ZBROZ EXIT Coilover Shocks  - ZBROZ X1 Series EXIT Shocks take your ride to the next level of driving performance. Whether it’s racing through the mountain trails, high speed desert rally action or those challenging rock crawling lines, the X1 Series Exit Shocks offer easy compression adjustability at the turn of dial and up-to 2" of true suspension lift. MADE IN THE USA! For CAB models or heavier vehicles, we recommend our HD Spring Kit.

OEM Shocks - When this option is selected, you can reuse your OEM shocks. You will still benefit in overall ride quality with your Long Travel Kit. You can always upgrade to our custom tuned ZBROZ EXIT Coilover Shocks at anytime.

COMPLETE AXLE REPLACEMENT▸

We make it EASY to install this entire kit! We provide complete Cobra Axle replacement axles with inner and outer CVs that come fully assembled. Both of these axles are COMPLETE with no need to disassemble and reassemble your OEM axles with longer bars. Rzeppa style CV’s that will achieve high angles, articulate freely, with no binding, and extend further than stock axles. We use the highest quality CV boots to keep the elements out and the grease in.

AXLE OPTIONS▸

Cobra HD

• Oversized components featuring our propriety combination of materials for a well-balanced, cost-effective axle.
• Rzeppa style CV’s that will achieve high angles, articulate freely with no binding and extend further than stock axles.
• We use the highest quality CV boots to keep the elements out and the grease in.
  
  

King Cobra (The Best of the BEST)

• American made components using a combination of High Strength Steel.
• Our high-performance CV grease “VENOM” comes standard in all King Cobras.
• Rzeppa style CV’s that will achieve high angles, articulate freely with no binding, and extend further than stock axles.
• The shaft itself will allow for a high degree of twist BEFORE and AFTER yield point is reached to absorb high impact scenarios and keep you on the trail.
• We use the highest quality CV boots to keep the elements out and the grease in.