For General Motors.
1999-1/2 & Later T-Series & W5 with Isuzu MLD6Q 6-Speed manual transmission The 5th/6th- synchronizer hub is press fit to the output shaft. J-22873 is used to press the 5th/6th- synchronizer hub to correct depth for proper synchronizer and transmission operation. J-22873 is required to install the 5th/6th- synchronizer hub without damage to the hub or the output shaft. After the 5th/6th- synchronizer hub is placed onto the output shaft, J-22873 is installed over the hub, and used with a hydraulic press to install the hub into position.
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