The Legendary Blackbox Underdrive
The Blackbox Series is NorthWest FabWorks premier line of shiftable, underdrive gearboxes. Typically mounted between the transmission and transfer case, the BlackBox is a gear reduction unit that has the ability to shift from a 2.72:1 low range back to 1:1 for existing operation.
Released in 2005, our original Blackbox set the benchmark for advanced planetary technology. Since then, the original BlackBox has evolved into a complete product line with dozens of application combinations. The BlackBox offers a gearing solution for everyone; from the weekend warrior, to a top truck challenger.
Testimonials
"Top notch experience with this company. Excellent customer service... they actually answer the phone!! They kept us in the loop and delivered our product just like they said they would. We are very pleased with our order and highly recommend this company!! Five stars... great experience working with these folks!"
Kim D.
"I ordered a dana 60 high steer arm. Holy cow 8 pounds of awesome shiny steel. It's a beast. I shared it with some friends. We will be buying more. Thank you guys and gals."
Chris H.
"Amazing support. They have helped me through my 205 transfer case build every step of the way. Answering questions for me and helping figure out what i needed. I have been very pleased with all my parts."
Noah J.
"I’m doing a coyote swap into my jeep and was told by several people I couldn’t keep my Rubicon transfer case and would have to buy an expensive atlas transfer case. I found these guys and they where more then helpful and respond faster then anyone I've talked to in the off-road market."