USA Standard Gear

A833 3rd & 4th Synchro Assembly

$207.89

SKU: ZM833WT307-2.5A

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The USA Standard Gear A833 3rd & 4th Synchro Assembly is engineered for A833 manual transmissions, specifically addressing the 3rd and 4th gear synchronizer functions. Designed for the 1970-1975 model years, this assembly is a direct replacement part aimed at restoring or maintaining smooth gear changes. Featuring a 40 spline inner hub, this synchro assembly offers enhanced durability and a robust connection within the transmission. It is noted as a non-overdrive 3-4 synchronizer assembly, crucial for the proper functioning of manual transmissions in classic vehicles. This synchro assembly is compatible with a wide range of classic Mopar vehicles, including various models of the Chrysler 300, Dodge Challenger, Charger, Coronet, and Plymouth Barracuda, Challenger, Duster, and Valiant, among others, produced between the specified years. Buyers are encouraged to confirm fitment with their specific vehicle details before purchase. The vendor's return policy may involve restocking fees unless fitment is confirmed by their sales team and the part is found to be incompatible.

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

BrandUSA Standard Gear
Part NumberZM833WT307-2.5A
CategoryDrivetrain

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

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.

View Full Shipping Policy