Product images and videos 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.

Drivetrain› Manual Transmissions and Components

USA Standard Gear

M5R2 3rd and 4th Gear Synchro Assembly

Name: M5R2 3rd and 4th Gear Synchro Assembly
Brand: USA Standard Gear
SKU: ZMM5R2-2.5

$106.89

SKU: ZMM5R2-2.5

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Advanced — 4+ hours

Overview

The USA Standard Gear ZMM5R2-2.5 is a 3rd and 4th gear synchro assembly for the M5R2 manual transmission. This part is designed for 1988-1998 Ford F-150 and Mazda vehicles. It features a 0.32-inch wide fork slot. Keys and springs are not included with this assembly.

Show original supplier description

The USA Standard Gear ZMM5R2-2.5 is a replacement 3rd and 4th gear synchro assembly specifically engineered for the M5R2 manual transmission. This component is crucial for smooth gear engagement in the specified model years. Designed for 1988 through 1998 Ford F-150 and Mazda vehicles equipped with the M5R2 transmission, this synchro assembly ensures proper function of third and fourth gears. It features a 0.32-inch wide fork slot for precise engagement. Please note that keys and springs are sold separately and are not included with this synchro assembly. This part is a direct replacement for worn or damaged synchro assemblies, helping to restore proper shifting performance and prevent grinding or difficult gear changes. Ensure compatibility with your specific vehicle's transmission model and year range before purchase.

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

Brand	USA Standard Gear
Part Number	ZMM5R2-2.5
Category	Drivetrain

5,000+ Trusted brands

1M+ Enthusiasts

5M+ Parts sold

(760) 282-4645 hello@motormia.co

Buy with Confidence

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.

View Full Return Policy

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.

View Full Shipping Policy