Tractors & Equipment Online

Contact: Dawson Jones, Inc. Phone 937-242-6637 or dawson@tractors-equipment.com

Gear Boxes over 100hp and Gear Boxes we use for custom conversions

If you have questions or would like to order a 100hp+ gearbox please give us a call at 937-242-6637 or fill out the box on your right and let me know your interests or questions.

The 01-034 / 75S / RC71 Gearbox is horsepower rated over 100+ This box is commonly used on heavy-duty 6' cutters, some 7' cutters, and many "Bat-Wing" multiple gearbox cutters. Please see the note below.

  1. It has a diamond shape mounting bolt pattern with 4 3/4" between bolt centers. (On this gearbox one bolt hole is directly under the input shaft.). Some larger HP boxes will have 6 mounting bolt holes.
  2. The input shaft is 1 3/4" 30 Spline
  3. The output shaft is 1.96" 15 spline
  4. The gear ratio is 1:1.46 (19 teeth on the input shaft gear, 13 teeth on the output shaft gear)

Please Note: We have more 100 + hp boxes with a variety
of input shafts, Ratios, and rotation (CCW/CW).

Please call or use the inquiry box above if you have any questions

Note also: Gearbox colors may vary according to availability

Custom Gear Box Conversions


01-307 / 01-378 / 01-379
100hp+ gear Box
on an MX7 (top)
and on
a JD 709 (right)

When you do your
Gear Box conversion,
we like to make sure you can
still use your existing
drivelines and blade carriers


Replacement gear set for John Deere MX5, and MX6, mowers including a new output shaft, new ring gear, input seal, output seal and rear rubber cap.

The gear on the shaft has 13 teeth, the ring gear has 22 teeth. 1:1.69 Ratio

Fits MX models with Iberica (Made In Spain) gearbox:

  • 13 tooth pinion with shaft, 15 splines at bottom of the shaft for blade carrier
  • 22 tooth ring gear
  • New input seal
  • New output seal
  • New rubber cap for the rear of the gearbox
This gear set will fit in all of the MX boxes made in Spain.

$549.50
Includes S / H

Replacement gear set for John Deere MX7, and MX8, mowers including a new output shaft, new ring gear, input seal, output seal and rear rubber cap.

The gear on the shaft has 15 teeth, the ring gear has 22 teeth. 1:1.69 Ratio

Fits MX models with Iberica (Made In Spain) gearbox:

  • 15 tooth pinion with shaft, 15 splines at bottom of shaft for blade carrier
  • 22 tooth ring gear
  • New input seal
  • New output seal
  • New rubber cap for rear of gearbox
This gear set will fit in all of the MX boxes made in Spain. 

$549.50
Includes S / H

Notice
We are expecting this gear set at any moment.

However, due to the tariff situation, we cannot give you a firm ship and delivery time.

 Please keep your eye on this page and as soon as we receive them we will notify those who are waiting and remove this notice

MX10 Gear Set for the Iberica Box (Spanish Box)

The MX10 has a ratio of 1:1.22. Gear teeth are 22 input and 18 output

Fits MX10 models with Iberica (Made In Spain) gearbox:

  • 18 tooth pinion with shaft, 15 splines at bottom of shaft for blade carrier
  • 22 tooth ring gear
  • New input seal
  • New output seal
  • New seal cap for rear of gearbox
  • Fits existing stump jumper
No need to exchange both gear sets. This gear set will match your existing gearbox.

$549.00
Kit includes necessary seals
Includes S / H

Notice
We are expecting this gear set at any moment.

However, due to the tariff situation, we cannot give you a firm ship and delivery time.

 Please keep your eye on this page and as soon as we receive them we will notify those who are waiting and remove this notice

$529.00
Includes S / H

This is the replacement output shaft for the MX Chinese gearboxes.

The part number is W52915Kit

Kit includes Input seal, Output seal, and The seal cap for the rear of the box

This shaft is used on every MX cutter 5ft thru the 8ft.

Please note: The MX10 Chinese gearbox uses a different shaft,

This shaft will not fit!