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NWF Eco Box Billet Planetary Doubler Case

NWF Eco Box Billet Planetary Doubler Case

Your Price: $729.00
Part Number:BB-ECO-
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Choose Options

Output Shaft:
Input Bearing Retainer
Shifter Option:
Crossmember Mounting Foot:
Bolt Pattern Adapter
Bringing the quality and craftsmanship of the original, the BlackBox-Eco was designed for the 4x4’er on a budget. While retaining the originals technology, quality and durability, the Eco is minimized to reduce cost. Designed to be a DIY builder kit; cases are shipped empty, and the customer provides the gears, and does the install and assembly. Low Range on a budget.
While the installation requires an intermediate level of mechanical aptitude, we also provide an installation overview.


Included In the Eco-Crawl Kit:
Front & Rear Billet 6061-T6 Case Halves
8620 Heat Treated Output Shaft
Roller Output Bearing
Internal Shifter Assembly
Hardware Pack
Additional Parts Required:
Planetary Gear Assembly From 231/241 (6 pinion recommended)
Input Bearing From 231/241
Shift Range collar From Manual shift 231/241
Optional Cable Shifter
Optional Dual Oiling Billet Input Retainer
Need an input shaft? We’ve got them.
Optional Mounting Foot.

** Note: To install a 31 Spline Input Shaft into one of our Eco Cases machining on the O.D of the Input is Required. Also a Special Pocket Bearing Adapter is required to install the proper Pocket Bearing. Please Call for more Information. **

** Note: The 241DHD with the PTO Drive will not work as a donor Case**

**Note: To install an Eco Box to a Dana 300 a Spacer is required for input/input retainer clearance. Please see part number CR-D300-A or if you are flipping the Dana 300 to Drivers Drop CR-D300-A-FLIP or you can use our Integrated Eco Box part number BB-ECO-I**