Why the 47rh billet input shaft is a total game changer

If you're pushing serious power through your Dodge, swapping in a 47rh billet input shaft is probably the smartest move you can make before something snaps. We've all been there—you turn up the pump, maybe throw in some bigger injectors, and suddenly that old 12-valve is making the kind of torque that makes your tires scream and your transmission sweat. The 47RH is a legendary gearbox, no doubt about it, but it has a "fuse" built into it from the factory. That fuse is the stock input shaft. ...

May 15, 2026 · 7 min · Franzén Cauchi