Mixed farms rarely run just one tractor. You might have a clean 110‑hp front‑axle‑suspension cab machine for primary tillage, an old 75‑hp open‑station workhorse for spraying, and another utility tractor that does everything from loader feeding to mowing. Buying three factory guidance systems is out of the question. And yet, you still want straighter rows during planting and less fatigue during those endless spraying days.
A tractor GPS auto steer kit solves this by treating precision steering as a movable tool rather than a permanent tractor option. One kit, a second wiring harness, and you can swap the brain and motor between machines in a matter of minutes. For a mixed operation that runs several tractors but only needs guidance on one at a time, that flexibility alone can justify the investment.
Why a Movable Kit Makes Sense on a Diversified Farm
Most farmsteads have that one tractor that does 60 % of the fieldwork and two others that jump in whenever the season demands. Locking guidance onto just one machine means the other two keep leaving overlaps, burning extra fuel, and wearing out the driver on long, repetitive jobs.
With a tractor GPS auto steer kit that's designed for owner installation and easy transfer, you get three wins at once:
- Plant with the big tractor – Fit the kit, lay down straight rows, and reduce seed overlap.
- Spray with the smaller tractor – Move the tablet and motor over, follow the planted rows with zero guesswork.
- Spread fertiliser with the utility tractor – Keep swath width consistent without counting fence posts.
The hardware cost doesn't triple because you're not buying three full systems. You're simply adding a mounting bracket and wiring plug to each tractor, while the core electronics and motor travel from cab to cab.
What's Actually Inside a Modern Auto Steer Kit
You don't need to be a mechanic, and you definitely don't need dealer software. A tractor GPS auto steer kit like the FJD AT2 or AT2 Lite comes as a complete package:
- Electric steering motor – It clamps onto the existing steering column inside the cab. No hydraulic connections, no cutting factory hoses.
- GNSS antenna and receiver – The puck mounts on the roof, bonnet, or a magnetic base. It talks to satellites (and optionally RTK correction signals) to pinpoint the tractor's position.
- Android tablet with guidance app – The screen is your command centre. You set an A‑B line, and the system takes over steering while you watch the implement.
- Wiring harness and control module – Plugs into the tractor's power supply and connects the motor to the tablet.
The whole thing unpacks in one box, and many farmers install it in an afternoon with basic hand tools. There's no need to visit a dealer, and there's no annual subscription unless you choose to activate RTK for tighter accuracy.
Two Kit Options for Different Farm Profiles
FJDynamics builds a tractor GPS auto steer kit that covers both the operator who wants full hands‑free steering and the one who mainly needs solid accuracy on a smaller budget.
FJD AT2 – The Complete Hands‑Free Kit
The AT2 is the full‑featured kit with RTK‑ready accuracy down to 2.5 cm. The electric motor is quiet, responsive, and handles most farm tasks from planting to strip‑till. The tablet interface is clean and intuitive, so a seasonal worker can learn the basics in under an hour.
Ideal for:
- Row‑crop planting where overlap costs are high.
- Tractors from 60 hp up to large row‑crop machines.
- Operators who want to take their hands fully off the wheel on long straight runs.
FJD AT2 Lite – A Lighter Kit That Still Steers Itself
The AT2 Lite trims some of the heavy‑duty components but keeps the core auto steer function. It's designed for smaller tractors, simpler terrain, and farmers who don't need ultra‑high torque or multi‑constellation processing. It still steers the tractor along an A‑B line and removes the constant small corrections that wear you out.
Ideal for:
- Compact and utility tractors doing spraying, spreading, or pasture work.
- Farms where the budget is tight but the desire to reduce fatigue and overlap is real.
- Moving between a couple of lighter machines during the week.
Both kits use the same simple installation approach, so moving the system from one tractor to another is a matter of unplugging the motor and tablet, then clicking them into the next machine's bracket.
A Morning on a Mixed Farm with One Swappable Kit
Here's how a tractor GPS auto steer kit actually plays out on a typical mixed farm day. You start at 7 am with the planter hooked to the 110‑hp tractor. The AT2 motor is already on that machine because you planted with it yesterday. You set an A‑B line along the headland, engage auto steer, and the tractor guides itself across 30 acres of undulating wheat ground. No steering input from you — just watching the planter, checking seed depth, and listening for blockages.
By 11 am the wheat is in. You park the big tractor, unplug the AT2 tablet and motor (two cables), and carry them over to the 75‑hp open‑station sprayer. The second tractor already has a pre‑installed wiring harness and bracket. You click the motor onto the column, plug in the tablet, and set your working width to match the spray boom. Now you're following the exact wheat rows you just planted, with zero skips and zero double‑sprayed strips.
After lunch, you need to spread fertiliser on a pasture paddock. You're down to the utility tractor. Unplug from the sprayer, move to the third tractor (also pre‑wired), and set a new A‑B line. The whole transfer takes less than ten minutes.
By 5 pm, three different jobs are done with one guidance kit, and you're not exhausted from fighting the wheel all day. That's the practical reality of a movable auto steer kit. It bends to the way you actually farm, not the other way around.
What Movable Auto Steer Saves You Beyond Fuel
The savings that a tractor GPS auto steer kit brings are easy to measure in diesel, seed, and chemical — we've talked about that before. But there are softer savings that matter just as much on a family‑run or small‑team mixed farm:
- Training time drops – A new worker or family member can drive straight rows on day one by following the tablet, not by developing a feel for the land over three seasons.
- Evening fatigue disappears – The mental drain of constant steering correction is real. Removing it means you finish the day capable of doing the next job, whether that's moving cattle or fixing a fence.
- Fewer missed areas – On odd‑shaped paddocks, the map on the tablet shows exactly what's been covered and what's left, so you don't return to the shed to find a 10‑foot unsprayed strip behind the dam.
Is Your Tractor a Candidate?
One of the most common questions about a tractor GPS auto steer kit is simply: "Will it fit my tractor?" The answer is usually yes, provided the tractor has a standard steering column. The electric motor clamps around the column inside the cab, and the antenna sits on the roof. There's no requirement for the tractor to be a late‑model unit with factory autoguidance.
In fact, the AT2 and AT2 Lite shine brightest on slightly older machines that are mechanically sound but lack modern electronics. If you're uncertain, a quick look at the steering column with a tape measure is enough to confirm fitment. FJDynamics' support team can talk you through it in a few minutes.
Conclusion
Farming with multiple tractors shouldn't mean only one of them gets the benefit of GPS accuracy. A tractor GPS auto steer kit that you can install yourself and move between machines brings straight rows, lower input bills, and less driver fatigue to every tractor that needs it — on the planting run, the spraying pass, and everything in between.
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The FJDynamics AT2 and AT2 Lite make that possible without a complex workshop visit. Check which kit fits your fleet, imagine how much easier next planting season could feel, and take the step toward a steadier, less tiring way of getting the work done.
