International Harvester 966 Transmission specs

The fastest speed on record for a 966 is 18.6 mph (30 km/h). The gearbox itself is not on record yet.

10 transmission values on record for the 966.

Engine power, claimed · gross or net not stated

95.6 hp

71.3 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “Farmall Farmall 966”, claimed

This is the maker’s own figure, measured at the engine. Power at the PTO is lower — by how much, for this machine, nobody has measured.

How fast will a 966 go?

The fastest speed on record for a 966 is 18.6 mph (30 km/h). The gearbox itself is not on record yet.

Transmission — 966 Transmission
Drive	2WD^{Source 1}
Forward gears	8–16^{Source 1}the article lists alternatives
Reverse gears	4–8^{Source 1}the article lists alternatives
Transmission as described	8 forward/4 reverse, 16 forward/8 reverse and stepless^{Source 1}
Stepless transmission	CVT
Clutch	Pedal-operated DYNA-LIFE clutchSources disagreePedal-operated Dyna-Life clutch (Traktorenlexikon, “Farmall Farmall 966”)
Top speed forward	18.6 mph · 30 km/h
Top speed reverse	10.0 mph · 16.09 km/hhighest reverse speed printed in the article's speed tables
Differential lock	Hydraulically operated differential lock^{Source 1}
Front axle	Oscillating, extendable front axleSources disagreePivoting, extendable front axle (Traktorenlexikon, “Farmall Farmall 966”)

Source · Traktorenlexikon, “IHC 966”

10 transmission values from Traktorenlexikon, “IHC 966”; and Traktorenlexikon, “Farmall Farmall 966”.

Sources checked

14 SEP 2026

Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution

Traktorenlexikon: Farmall Farmall 966 — CC BY-SA 4.0, WIKIBOOKS-TL-118870 · revision 1034721. Wikibooks contributors (Traktorenlexikon). Original document
Traktorenlexikon: IHC 966 — CC BY-SA 4.0, WIKIBOOKS-TL-118869 · revision 1055526. Wikibooks contributors (Traktorenlexikon). Original document