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 transmission 23 - gear synchronizer ring fits 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 brass construction. Replaces OE 640397