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Drivetrain› Differentials and Rear-End Components

USA Standard Gear

M5R Manual Transmission Synchro

Name: M5R Manual Transmission Synchro
Brand: USA Standard Gear
SKU: ZMM5R1-15A

$51.76

SKU: ZMM5R1-15A

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Overview

The USA Standard Gear ZMM5R1-15A is a manual transmission synchro for the MR5 transmission series. It specifically replaces the 5th gear and reverse synchronizer for Ford Ranger and Mazda vehicles.

This component features an updated sleeve for improved performance and durability.

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The USA Standard Gear ZMM5R1-15A is a manual transmission component essential for maintaining or enhancing the performance of your M5R transmission. Constructed from high-grade materials, this synchro ensures long-lasting performance and reliability. The "updated sleeve" feature further contributes to its robust design and functionality. Customer feedback highlights the significant improvement in shifting feel after installation, with users noting it makes gears feel much smoother, like having a "brand new transmission." The quality is described as evident, making it a highly recommended replacement part for those experiencing shifting issues or wear. This synchro is designed for the M5R Transmission Series, specifically for Ford Ranger and Mazda vehicles. Please note that this product is subject to California Proposition 65 warnings regarding cancer and reproductive harm.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

Brand	USA Standard Gear
Part Number	ZMM5R1-15A
Category	Drivetrain

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Returns & Fitment

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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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