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
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**