Omix T90 reverse idler gear shaft is a direct-fit replacement for T90 3-speed manual transmissions and replaces OE 640420. OMIX supplies a transmission reverse idler gear shaft that meets or exceeds factory standards and fits a wide set of Willys and Jeep models from 1946–1971 equipped with the T90 gearbox. It restores reverse gear function with OE-style fit and finish.
Omix T90 Reverse Idler Gear Shaft 41-71 Willys & Jeep