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The model archive
GBT
Explore 2 farm tractor models. Follow a model into its engine specifications, transmissions, dimensions, historical photographs, and available test records.
About GBT
Jerry Boesch and Jim Gnewuch founded GBT Industries in Madison, Wisconsin, in 1975. Its cultivating and utility tractor effort lasted only a few years before a move into distribution.
- Beginning
- 1975
- Founder / origin
- Jerry Boesch and Jim Gnewuch
- Known for
- Small cultivating and utility tractors
- Sale / later history
- Assembly stopped by 1978; became a Pasquali distributor
History and legacy
The GBT-2000 drew on the cultivating layout associated with the Allis-Chalmers G. Other models were proposed, but the source is uncertain whether the 4000 entered production. That uncertainty is retained rather than treating every announced model as manufactured.
Sources & further reading
History reviewed 2026-10-20.
Showing 2 of 2 models
GBT-2000
1976–1978
27 hp
Source index power
2WD Only
Drive
GBT-3000
1976–1978
27 hp
Source index power
2WD Only
Drive
Index power values can include estimates derived from belt or PTO power. They are identified on each model card and are not interchangeable with a measured engine rating. Model years and missing values follow the source index.