Drivetrain› Manual Transmissions and Components
USA Standard (Yukon)
USA Standard Manual Trans MUNCIE CH465 SM465 3rd 4th Blocker Synchro Ring CH465 M T SYNCHRO RING 3
SKU: U018 ZMSRWT304-14A
Moderate — 2–4 hours
Description
This part serves as a blocker synchro ring for the 3rd and 4th gears, crucial for smooth gear changes and transmission operation. It is engineered to be a direct replacement for the original equipment, ensuring proper fit and function within the Muncie CH465 and SM465 gearboxes.
Fitment
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Specifications
| Brand | USA Standard (Yukon) |
| Part Number | U018 ZMSRWT304-14A |
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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