The differences that matter.
01
An unstated basis against a PTO rule
Land Pride lists 49–80 tractor hp for FM2584 without naming engine or PTO, and ties the minimum to speed, terrain, material and moisture. WoodMaxx’s manual lists 30–65 PTO hp for FM-78 with either blade set.
A 52-engine-hp tractor with 41.6–44.2 PTO hp is inside FM2584’s range only on engine power, and inside FM-78’s by 11–14 PTO hp. Ask Land Pride which figure it means before choosing the wider mower.
- Source: Printed p14 / PDF p18 Tractor Requirements; printed pp16–17 hitch positions; printed p39 / PDF p43 widths, weights, rotor assemblies ↗
- Source: Printed p12 model table ↗
- Source: Printed p40 / PDF p41: blade-specific PTO requirements, cutting width, fixed extents, product weight, Category 2 bushings ↗
02
84 inches of cut against 70
FM2584 cuts 84 inches with a 96-inch overall width and mounts center or 10 inches right. FM-78 cuts 70 inches, lists 80 inches overall on its page and has fixed extents of 33 inches left and 46 inches right of center.
FM2584 covers 20 percent more per pass but needs an 8-foot opening for gates, trailers and storage.
- Source: Printed p14 / PDF p18 Tractor Requirements; printed pp16–17 hitch positions; printed p39 / PDF p43 widths, weights, rotor assemblies ↗
- Source: Printed p40 / PDF p41: blade-specific PTO requirements, cutting width, fixed extents, product weight, Category 2 bushings ↗
- Source: Black/hammer SKU FM-78-0006; WEIGHT; Hero Hitch Type versus lower HITCH TYPE; price ↗
03
About 1,200 lb against 880 lb
Land Pride lists FM2584 at 1,236 lb with a duckfoot rotor (brochure 1,168 lb) and its 24-hammer rotor assembly separately at 301 lb, with no complete hammer weight. FM-78’s manual lists 880 lb; its page lists 710 lb mower-only plus a 39-lb shaft.
FM2584 is the heavier load, carried further behind the tractor. Ask for its complete hammer-configuration weight and the tractor’s 24-inch lift rating before ordering.
- Source: Printed p14 / PDF p18 Tractor Requirements; printed pp16–17 hitch positions; printed p39 / PDF p43 widths, weights, rotor assemblies ↗
- Source: Printed p12 model table ↗
- Source: Printed p40 / PDF p41: blade-specific PTO requirements, cutting width, fixed extents, product weight, Category 2 bushings ↗
- Source: Black/hammer SKU FM-78-0006; WEIGHT; Hero Hitch Type versus lower HITCH TYPE; price ↗
04
Category 2 evidence
Land Pride lists FM2584 as Category I/II. WoodMaxx’s current manual supports Category 1 or 2 with Category 2 bushings, while lower text on the FM-78 page says Category 1 only.
Both have documented Category 2 mounting. For FM-78, confirm the hitch revision and that the bushings are in the quote.
- Source: Printed p14 / PDF p18 Tractor Requirements; printed pp16–17 hitch positions; printed p39 / PDF p43 widths, weights, rotor assemblies ↗
- Source: Printed p40 / PDF p41: blade-specific PTO requirements, cutting width, fixed extents, product weight, Category 2 bushings ↗
- Source: Black/hammer SKU FM-78-0006; WEIGHT; Hero Hitch Type versus lower HITCH TYPE; price ↗
05
Hammer capacity and rotor
Land Pride’s catalog gives 1.5-inch hammer capacity in its blade options and 2 inches in its FAQ; the manual says 2 inches. WoodMaxx describes hammers for saplings up to about an inch on its FM series. The FM2584 hammer rotor (333-137A) is specified on the order.
FM2584 may be rated for heavier material, but Land Pride’s figures conflict. Ask the dealer which applies to the delivered rotor.
- Source: Three Blade options: 1.5-inch hammer; cutting-capacity FAQ: 2-inch hammer ↗
- Source: Printed p14 / PDF p18 Tractor Requirements; printed pp16–17 hitch positions; printed p39 / PDF p43 widths, weights, rotor assemblies ↗
- Source: Black/hammer SKU FM-78-0006; WEIGHT; Hero Hitch Type versus lower HITCH TYPE; price ↗
06
A listed price against a dealer quote
FM-78 hammer was observed at $3,900 on November 7, 2026, with a slip-clutch shaft and gearbox oil listed. Land Pride publishes no price for FM2584.
Compare an itemized FM2584 dealer quote, including rotor, shaft and setup, with FM-78’s delivered cost and any Category 2 bushings.

