8 Speed Sequential Gearbox with DNR Selector

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Free instructions of the 8 speed sequential gearbox with DNR Selector issued from my 42115 Alternate Model of the Lamborghini Sian, the Ford F150.

SKU: 8_SPEED_GEARBOX Categories: , ,

Video Presentation



  • 8 speeds with endstops (to prevent gear shift from 1th to 8th and 8th to 1th)
  • stepper mechanism (yellow lever) to engage gears
  • DNR (Drive / Neutral / Reverse) selector (red lever)
  • AWD (no central differential), RWD or FWD
  • Front Fake engine
  • Compact building (5 height stud for the gearing unit)
  • Optional motorization, only for display (drivetrain not design for power vehicle)

You can read the full review of the Ford F150 where I used this gearbox on the blogpost. If you are interested by this Alternate model of the Lamborghini Sian – 42115 Ford F150 in LEGO Technic, see the product page here.


How to build ?

The PDF instructions can be downloaded for free on this shop, or you can get with the 42115 Ford F150 which contains a practical use of this gearbox. Each instruction contains the partlist at the end, but you can check in the instructions preview below.


About this product

Instructions preview

Additional information

Model Size



Black, Gray


All, Car, Free, Truck


In Option

Building Difficulty


Piece Count


Bill Of Material


Purchased File

PDF Instructions (80 pages / 64mo)