The GearMotive ZF Sequential Dogbox transmission is based on their well-known H-pattern dogbox gearset. This sequential transmission uses same type of gears and shafts, which have been proven to work on various racing classes and has become a highly favoured product specially in Rally, Circuit Racing and Drifting. The gearset is proven to work on over 1100Nm power in Drifting and Drag racing.

Now the gearset is combined with Sequential shifting mechanisms and housing providing even faster and more flawless gear changes. BMW ZF bell housing is mated with GearMotive’s custom manufactured rear housing, which measures to same dimensions as a ZF stock rear housing. The GearMotive ZF Sequential can be bolt-on to replace original BMW ZF S5D transmission. A sequential shifter is installed into the stock shifter position and is very easy installation.

The GearMotive Sequential shifter is self-centering, very sleek black design, made from high-quality aluminium material. The shifter has integrated shiftcut sensors, providing an option to use flat shifting.

The Gear Display is a multi-colour touch screen display. The display shows the gear position and allows configuring various options, such as shift cut sensitivity.

The GearMotive Sequential Electronic Control Module (ECM) is a separate box having ready-made wiring kit. The wiring kit is installed to the shifter, gear position sensor, gear display, power source and possibly to an aftermarket ECU for shift cut and gear position info. The ECM will be able to control shift cut even for vehicles with the stock ECU (future option).

For high power vehicles (over 500hp), GearMotive offer a heavy-duty HD input shaft option.

Read further article about ZF Sequential Dogbox on GearMotive’s Blog page.

• 5 Speed Sequential Dogbox gearset
• Patented design to improve power handling capabilities
• Extremely strong gearing, straight cut gears.
  Straight 1:1 5th gear ratio provides silent cruising and no power loss.
• Uses ZF S5D OEM bell housing and is a bolt-on Fitment to replace BMW ZF S5D transmission
• Gear position sensor is included in the gearbox
• Weight with bell housing appr. 38kg
  
• Two Ratio options (see below)
• Ratio set 1 for Rally / Circuit, (Long 1st gear, smaller drop between gears):
  Gear ratios 1-5: 2.23, 1.71, 1.38, 1.16, 1.00
• Ratio set 2 for Drift / Drag / Rallycross (Longish 1st gear, bigger drop between gears):
  Gear ratios 1-5: 2.73, 1.83, 1.42, 1.16, 1.00