Many owners added auxiliary transmissions to offset the fast gearing that many 8N owners don't like. Again, Marvin Bauman takes it even further with his “Fourtrans” 8N, the world’s slowest tractor that travels at 12
inches per hour in the lowest gear.
In addition to the 8N’s 4-speed factory transmission, it contains added working versions of the:
- Sherman “Special Purpose” Transmission.
The tractor using this “Special Purpose” transmission along with the standard tractor transmission has eight forward speeds and two reverse speeds. It is mounted in front of the standard transmission. The shift handle is on the left side of the tractor, below the steering gear box.
- Everett Auburn Trencher Speed Reduction Transmission.
This two-speed reduction transmission was used when a trencher was mounted on the tractor. It has a 98-to-1 gear reduction ratio to produce the slow speed required to operate a trenching machine attachment. This unit is mounted directly behind the standard transmission and lengthens the tractor by 9-3/4”. The shift handle is located on top of the gear reduction unit directly in front of the seat.
- Howard Rotavator Speed Reduction Transmission.
This two-speed transmission has a 3.5 to 1 gear reduction to obtain the slow speed needed to operate the company’s Rotavator (roto-tiller). Howard Rotary Hoe, Ltd. made this unit in England. It uses a planetary gear system and is normally mounted directly to the rear of the standard transmission. In this tractor, it is mounted to the rear of the Everett Auburn trencher transmission. The shift handle extends out on the right side of the differential housing.
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