You slide your gear stick into position at the stop light, only to find it slips right out of first gear. Later, you hear an unexpected high-pitched noise as your E46 M3 transmission pops out of fifth on the highway. It might time to replace the tranny in your ride: and if so, you can make your life much easier by viewing the vast inventory of transmissions on eBay. Locate the right match for your engine in a snap: select an M3 6-speed transmission and overhaul your automobile at home. Alternatively, find an E46 manual transmission for your 2001 coupe and take it to a local mechanic. You can also find sequential manual gearboxes and other upgrades to turn your car into a race worthy beast. If you prefer to work with what you already have, pick up a transmission rebuild kit. In addition, your can locate transmission brackets, clutch slave cylinders, mounts, and other essential components for your repair project. When you have the right E46 M3 transmission in your clutches, you can rehab your ride quickly and easily.