SM465 Manual Transmission Hubs & Sliders

Do you need parts for your GM SM465 rebuild? You can get everything you need for your Muncie SM465 transmission at AllStateGear.com, including synchro parts. The transmission hubs have angled slots that line up with the rounded teeth on the transmission sliders. When you shift, the slopes help the sliders line up and fall into the slots. This engages the gear without grinding, or it should if these parts aren’t worn out. We offer full synchro kits, as well as individual hubs and sliders to fix your gearbox’s shifting problems.

The SM465 upgrades and replacement parts on this page work with all Muncie SM465 transmissions. This gearbox was used by GM from 1968 to 1991 in almost all of its trucks and SUVs, from ¼ ton to 1 ½ ton models.