"Brownie" is a generic term for auxiliary transmissions in general, not just the ones manufactured by Beown-Lipe. They come in all sorts of torque ratings and speeds. I've seen 2, 3, and 4 speed auxiliaries, with manufacturers such as Eaton, Spicer, Fuller, and others, including Brown-Lipe. The most common ones I've worked with are 3 speeds, with under, direct, and overdrive ratios, paired with either a 4 or 5 speed main box. I've got two on hand right now, one big honking box suitable for a Diesel rig, and another, lower torque unit that would be right at home in a truck somewhere in the 1 ton to 2 1/2 ton range. I had ideas of putting the smaller box into a Ford F-350 motorhome behind a 460 engine and a C-6 automatic to get a little better gas mileage. We retired the camper before I got around to making that conversion. The big box is headed for my 1961 American LaFrance fire truck, replacing the driveline mounted fire pump. That rig has a 401 GMC V6 and a Clark 5 speed with direct drive in 5th. gear. I'm planning to remove the rusted-out fire bed and install a commercial 5th. wheel and a gooseneck trailer hitch for heavy duty towing purposes.
Jerry
