OMIX proudly offers all the parts you need to keep your WillysJeep running like new with quality standards that always meet or exceed those of the factory part. This replacement main drive gear fits 41 - 45 MB GPW, 46 - 49 CJ2A, 49 - 53 CJ3A, 53 - 66 CJ3B, 50 - 52 M38, 52 - 57 M38A1, 46 - 55 Truck Station Wagon, 48 - 50 Jeepster VJ, 55 - 65 FC150 FC170, and 55 - 71 CJ5 CJ6 models equipped with T90 3 - speed manual transmissions. Features 18 teeth and a 9 - 116 - in. overall length. Replaces OE 640428