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Formula Alfa Boxer
Formula Alfa Boxer Europa Single Seater race car


Hewland Mark 9, LD200 gearbox ”M” type gears with 1” spline layshaft.
Normally these M type gears are in the later model Mk 9 which can run upto 160 hp and aren't interchangeable with early model dog hubs. These gear ratio's are good for the LD200, 4 or 5 speed.


Note the dog notches don't go to inner bearing diameter,
M Type gears are for later model Mk9 or LD200



Hewland Mark 5, NST, Staff Silent Gear gearbox std, ”M” or ”R” type gears with 1 1/8” spline layshaft.
The standard, M and R type gears are all dimensionally the same. The M & R are stronger and will handle more horsepower / torque.

For sale
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Price for fixed first gear, reverse on intergal shaft, Mk 8 or Mk 9 5 speed, $350

Price slide on first gear for LD200, 5 speed (fine spline), $195

Price second gear hubbed (2nd ), new $195, used $135.

Price slide on top gears or third (+) gear (3rd, 4th, or 5th), new $185, used $125.

plus delivery, can be collected from Auckland New Zealand.
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The following list of gears for sale is a sample of what is available, please contact to verify availablity. Will be continuing to upgrade the list, so revisit.
Gearbox Teeth = Ratio Grade Position Gear & Condition
Hewland Mk8/9 5 speed 12 / 29 = 2.417 M 1st fixed Fixed first & shaft
Hewland Mk8/9 5 speed 12 / 31 = 2.583 M 1st fixed Fixed First & shaft
Hewland LD200 5 speed 15 / 36 = 2.400 M 1st new
Hewland LD200 5 speed 16 / 34 = 2.125 M 1st new
Hewland LD200 5 speed 17 / 35 = 2.059 M 1st new
Hewland LD200 5 speed 17 / 33 = 1.941 M 1st new
Hewland LD200 5 speed 18 / 34 = 1.889 M 1st new
Hewland LD200 5 speed 18 / 33 = 1.833 M 1st new
Hewland Mk9, LD200 16 / 35 = 2.188 M 2nd hubbed new
Hewland Mk9, LD200 17 / 35 = 2.059 M 2nd hubbed new
Hewland Mk9, LD200 17 / 34 = 2.000 M 2nd hubbed new
Hewland Mk9, LD200 19 / 33 = 1.737 M 2nd hubbed new
Hewland Mk9, LD200 18 / 33 = 1.833 M 3rd-5th new
Hewland Mk9, LD200 20 / 30 = 1.500 M 3rd-5th new
Hewland Mk9, LD200 22 / 28 = 1.273 M 3rd-5th new
Hewland Mk9, LD200 23 / 29 = 1.261 M 3rd-5th used
Hewland Mk9, LD200 23 / 28 = 1.217 M 3rd-5th new
Hewland Mk9, LD200 23 / 27 = 1.174 M 3rd-5th new
Hewland Mk9, LD200 21 / 24 = 1.143 M 3rd-5th new
Hewland Mk9, LD200 24 / 26 = 1.083 M 3rd-5th new, used
Hewland Mk9, LD200 25 / 27 = 1.080 M 3rd-5th used
Staffs Silent 12 / 29 = 2.417 1st shaft Fixed first & shaft
Hewland Mk5, NST, Staffs 17 / 34 = 2.000 M 2nd new, new
Hewland Mk5, NST, Staffs 17 / 33 = 1.941 M 2nd new, new
Hewland Mk5, NST, Staffs 18 / 34 = 1.888 std 3rd-5th used
Hewland Mk5, NST, Staffs 14 / 26 = 1.857 R 2nd used
Hewland Mk5, NST, Staffs 15 / 27 = 1.800 std 2nd used
Hewland Mk5, NST, Staffs 15 / 26 = 1.733 R 2nd used
Hewland Mk5, NST, Staffs 15 / 26 = 1.733 std 3rd-5th new
Hewland Mk5, NST, Staffs 19 / 32 = 1.684 std 2nd used, new
Hewland Mk5, NST, Staffs 15 / 25 = 1.667 std 2nd used
Hewland Mk5, NST, Staffs 19 / 31 = 1.632 M 3rd-5th new
Hewland Mk5, NST, Staffs 16 / 26 = 1.625 R 3rd-5th new
Hewland Mk5, NST, Staffs 17 / 27 = 1.588 R 3rd-5th new
Hewland Mk5, NST, Staffs 20 / 31 = 1.550 M 3rd-5th new
Hewland Mk5, NST, Staffs 20 / 31 = 1.550 std 3rd-5th new
Hewland Mk5, NST, Staffs 17 / 25 = 1.471 R 3rd-5th new
Hewland Mk5, NST, Staffs 21 / 30 = 1.429 M 3rd-5th new
Hewland Mk5, NST, Staffs 21 / 29 = 1.381 M 3rd-5th new, new
Hewland Mk5, NST, Staffs 19 / 26 = 1.368 R 3rd-5th new
Hewland Mk5, NST, Staffs 22 / 30 = 1.364 std 3rd-5th new
Hewland Mk5, NST, Staffs 18 / 23 = 1.278 std 3rd-5th new
Hewland Mk5, NST, Staffs 22 / 28 = 1.273 std 3rd-5th used, new
Hewland Mk5, NST, Staffs 22 / 28 = 1.273 M 3rd-5th used
Hewland Mk5, NST, Staffs 19 / 24 = 1.263 std 3rd-5th used
Hewland Mk5, NST, Staffs 18 / 22 = 1.222 std 3rd-5th new
Hewland Mk5, NST, Staffs 19 / 23 = 1.211 R 3rd-5th used
Hewland Mk5, NST, Staffs 23 / 27 = 1.174 M 3rd-5th new, new
Hewland Mk5, NST, Staffs 24 / 28 = 1.167 std 3rd-5th new
Hewland Mk5, NST, Staffs 19 / 22 = 1.158 std 3rd-5th used
Hewland Mk5, NST, Staffs 19 / 21 = 1.105 std 3rd-5th used, new
Hewland Mk5, NST, Staffs 24 / 26 = 1.083 M 3rd-5th new
Hewland Mk5, NST, Staffs 26 / 25 = 0.962 M 3rd-5th used
Hewland Mk5, NST, Staffs 27 / 25 = 0.926 std 3rd-5th new
Hewland Mk5, NST, Staffs Ask for available ratio 2nd-5th Other ratio's available please request
Staffs reverse intermediate gear reverse used
Sadev gearbox 17 / 29 = 1.706 used, Plus used dog rings

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Happy to help you determine the best gear ratio's for your race car, have computer anaylsis programs and experience of all race tracks in New Zealand. Best to contact me.

Contact Andy on - mobile 021 784147 - phone (+64)(09) 5702849 or email
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Let me know what gear ratio(s) you are after and for 1st, 2nd, 3rd or higher
What gearbox you have Mk 5, Mk9, LD200, NST, Staffs. 4 speed or 5 speed
Have 1 or 1.125 inch layshaft spline. Current gear type you are running, standard (unmarked), M, N, R