The 600 incorporated improved brakes and wheel seals as well as an ASAE standard PTO.
#Ford tractor serial number guide series#
In late 1954, Ford introduced its three-digit number series tractors, which further improved upon the NAA. For 1954, The NAA was carried over, sans the Golden Jubilee badging (which is popular with collectors today), with only a gear ratio change. The NAA is also slightly larger than its predecessors: four inches longer, four inches higher and 100 pounds heavier at 2,840 pounds.
The NAA's Solid System hydraulics relied on an engine-driven hydraulic pump rather than the PTO-driven pump that was standard issue on the N tractors (this meant that the hydraulics could be operated without the PTO being engaged) and a live PTO was optional. Transmission Ī four-speed transmission was standard on the NAA, and auxiliary gearing was available. A kerosene-burning NAA, known as the NAB, was an option but found few buyers. Ford's British Fordson tractors were readily available with diesel engines, but in the States, diesels were still uncommon. The mulching blades have been replaced to make the deck a rear discharge. Below the NAA's new hood was a 134-cu.in., overhead-valve, gas-burning inline four-cylinder engine worth 32 hp. Just bought a used GT 235 with a 44 inch Pirahna deck.