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The best automatic transmission for Ford 460 should be able to handle the higher torque and horsepower associated with a big-block engine. The OE E4OD (automatic overdrive) may be the best choice for a motorhome, but it doesn't do much for the engine's first three gears. The most popular automatic conversion kit for a 4.6-liter is the AOD-M. It comes with an upgraded clutch and shifter, but its price is high ($2,500-$3,500), so the upgrade kit may be the right answer.
The E4OD is based on a highly modified C6, and features an overdrive component added to the input side of the transmission. This conversion has always been an electronically controlled transmission, so it should be able to handle it. The Gearstar company offers a Level III AOD, while Ford also offers a custom-built Level IV. Both types of automatic transmissions come with their own features and benefits.
The AOD is the best automatic transmission for Ford 460. It has an overdrive gear ratio of 0.67:1. It has a lower gear ratio than the C6. The transmission is also easier to overhaul than a conventional manual transmission. It is also more cost-efficient than other transmissions. In addition, it is easier to replace the clutch, allowing for more engine performance. However, the shift process can be a pain, and there are many options.
The Ford E4OD is based on a highly modified C6, and has an overdrive component added to the input side. It is a fully-electronic transmission and uses a dipstick to adjust the gears. The Gearstar system also offers a stand-alone computer. It has the ability to adjust the shift points and provide a nice shift feel. The company also offers a Level III AOD as well as a Level IV custom-built version.
The E4OD is a modified C6 with an overdrive component added to the input side. It has always been electronic controlled. AOD is the best option for a Ford 460 with the same engine. In fact, it is the best automatic transmission for ford 460 for a large SUV. It will fit perfectly and be compatible with your vehicle. If you are considering replacing your existing gearbox, you can try Gearstar's Level III AOD or its custom Level IV.
The Ford C-6 has a higher capacity and can handle more horsepower without major modifications. It weighs 204 pounds and holds 24 pints of fluid. Until mid-77, it used type FA hydraulic fluid, but later, the C-6 was converted to Dexron/Mercon. The dipstick will reference the type of hydraulic fluid. For a Ford 460, you need to use the highest quality AOD.