4-Into-5 Speed Stainless Transmission Plate

Running a 4-speed in a 5-speed world? We got you. Our 4 into 5 Speed Transmission Plates let you mount a traditional 4-speed transmission into Softail and Fat Boy frames built for 5-speed bolt patterns—perfect for Evo Big Twins from 1986–1999 and most aftermarket frames from the same era.

Whether you’re doing a period-correct build or just want that 4-speed feel in a newer frame, this plate makes the swap smooth.