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NWF Eco Box Billet Planetary Doubler Case

Your Price: $799.00
Part Number:BBE00-30

Choose Options

EcoBox Output Shaft:
Optional Items:
Universal Mounting Foot (Standard 6 Bolt Round) [+$49.00]
Laser Cut 6 Bolt Round Gaskets (2) [+$20.00]
Laser Cut 6 Bolt Round Gaskets (3) [+$30.00]
EcoBox Output Seal Extension [+$49.00]
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
9310 Heat Treated Output Shaft
Roller Output Bearing
Internal Shifter Assembly
Hardware Pack
Additional Parts Required:
NP231/NP241 Input Shaft to match your Transmission
Planetary Gear Assembly From NP231/NP241 (6 pinion recommended)
Annulus Gear
Input Bearing From 231/241 (Matched to Input Shaft)
Shift Range collar From Manual shift NP231/NP241
Input Bearing Retainer w/ Seal from NP231/NP241

** 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 BBE08-3300-Z**

**Note: This is a Universal Product that fits many different Transfer Cases all with Different Input Shaft StickOut Lengths and some with different seal Diameters. In some applications a Spacer and/or Seal Extension may be required to prevent bottoming out and leaking.** SEE BELOW

32 Spline NP241 requires 3/8" Clocking Ring, No Seal Extension Required
27 Spline Long NP241 requires 7/8" Clocking Ring and 7/8" Seal Extension
27 Spline Short NP243/246 requires 3/8" Clocking Ring and 3/8" Seal Extension
23 Spline Long NP231 requires 7/8" Clocking Ring and 7/8" Seal Extension
23 Spline Short NP231 requires Universal Mounting Foot and 3/4" Seal Extension
31 Spline BW1356 Requires Gaskets between each surface (2 Without Mounting Foot, 3 With Mounting Foot)