---
product_id: 3266410
title: "USA Standard Gear (ZG C8.25-355) Ring & Pinion Gear Set for Chrysler 8.25 Differential"
brand: "usa standard gear"
price: "A$707"
currency: AUD
in_stock: true
reviews_count: 13
url: https://www.desertcart.com.au/products/3266410-usa-standard-gear-zg-c8-25-355-ring-and-pinion
store_origin: AU
region: Australia
---

# 13 x 12 x 3 inches 14.08 pounds 3.55 axle ratio USA Standard Gear (ZG C8.25-355) Ring & Pinion Gear Set for Chrysler 8.25 Differential

**Brand:** usa standard gear
**Price:** A$707
**Availability:** ✅ In Stock

## Summary

> 🔩 Gear Up for Greatness!

## Quick Answers

- **What is this?** USA Standard Gear (ZG C8.25-355) Ring & Pinion Gear Set for Chrysler 8.25 Differential by usa standard gear
- **How much does it cost?** A$707 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/3266410-usa-standard-gear-zg-c8-25-355-ring-and-pinion)

## Best For

- usa standard gear enthusiasts

## Why This Product

- Trusted usa standard gear brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Performance Upgrade:** Elevate your vehicle's performance with a 3.55 axle ratio.
- • **Robust Construction:** Machined exterior for enhanced durability.
- • **Precision Engineering:** Crafted for optimal performance and reliability.
- • **Versatile Compatibility:** Fits a variety of common and hard-to-find applications.
- • **Confidence in Installation:** Backed by a one-year warranty against defects.

## Overview

The USA Standard Gear ZG C8.25-355 Ring & Pinion Gear Set is engineered for Chrysler 8.25 differentials, offering a reliable 3.55 axle ratio. With a robust machined exterior and a one-year warranty, this gear set ensures both performance and peace of mind for your vehicle's drivetrain.

## Description

USA Standard Gear (ZG C8.25-355) Ring & Pinion Gear Set for Chrysler 8.25 Differential

## Features

- USA Standard ring and pinion sets are the right choice to add confidence to your install
- USA Standard Gear offers a full line of ring and pinion sets for a variety of common and hard to find applications
- USA standard gear offers a standard one year warranty against defects on their ring and pinion sets
- This product is used in a 3.55 axle ratio

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | USA Standard Gear |
| Brand | USA Standard Gear |
| Model | ZGC8.25-355 |
| Item Weight | 14.08 pounds |
| Product Dimensions | 13 x 12 x 3 inches |
| Item model number | ZG C8.25-355 |
| Exterior | Machined |
| Manufacturer Part Number | ZG C8.25-355 |
| OEM Part Number | ZG C8.25-355 |

## Images

![USA Standard Gear (ZG C8.25-355) Ring & Pinion Gear Set for Chrysler 8.25 Differential - Image 1](https://m.media-amazon.com/images/I/71DbQE+2t8L.jpg)
![USA Standard Gear (ZG C8.25-355) Ring & Pinion Gear Set for Chrysler 8.25 Differential - Image 2](https://m.media-amazon.com/images/I/81jgzFoJTbL.jpg)
![USA Standard Gear (ZG C8.25-355) Ring & Pinion Gear Set for Chrysler 8.25 Differential - Image 3](https://m.media-amazon.com/images/I/81+rvGRYy7L.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Perfect replacement for my originals.
  

*by K***E on Reviewed in the United States on January 25, 2024*

Perfect replacement for the gears that were damaged when I threw a bearing. For the most part, it was easy to install and replace the old chewed up gears.  They are heavy and well made! Quality seems to be a priority.I bought the bearing and shim set to go with the gears, now the ride is quiet and smooth.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Notice for GM 12 bolt C10 diff install
  

*by R***T on Reviewed in the United States on August 3, 2019*

These gears appear to be good quality and the wear pattern looks the best I've ever seen after adjustment. I have a 12 bolt 8.875 GM truck rear in my '67 C10. All 3 of my C10's, '67, '68, '69 2wd trucks had 3.08 factory installed gears. I guess because of only a 3 speed auto trans in my '67 and '68, it was better on the highway. My '69 is a 3 speed manual. I decided that since I built a 383 stroker small block and installed a 3000 rpm stall converter in the TH400, due to the cam profile, I would replace the 3.08 geared, one wheel peel with a 3.73 gear and a Spartan "lunch box" locker. I'm just about to fire this thing up in a week or two. Just waiting on the machine shop to do the final piston fit honing and it ready to assemble, stab it in, hook everything up, start it up, and hold onto my hat.But I digress. Sorry, lost track. Anyhow, changing the gears from 3.08 to 3.73 I obviously had to re-shim my carrier to move it to the left. The factory shims were just about equal from one side to the other. Left being a .230 and right being a .243 thickness. I had to bring my left side to .445 and the right only has .024 gap in order to get my .006-.010 backlash needed for a good pattern. I even had to shim my pinion an additional .030 just to get it right.  It's not quite a tight fit as factory, but I don't have a housing spreader and the 3 very thin .008 shims were giving a fit without trying to fold over on me. I don't think .004" is going to give me any trouble. Especially with the Moser girdled diff cover I'm using.Okay, here's the issue I ran into. Being that I needed to shift the carrier over almost a quarter inch, the right side of the carrier was hitting the area just outside and to the front of the bore for the carrier bearing. So, I removed the carrier and used a dremel tool to slightly grind the carrier housing on the four 'corners' where the bearing is pressed on. I took off about .100" on each edge and it then fit like a glove. I got my backlash to .008". Installed the yoke with a new crush sleeve and torqued the pinion nut to 11 in.lbs. Re-installed my carrier and torqued the caps to 60 ft.lbs. and installed the diff girdle cover.Hint to the next guy that decides to rebuild a differential. Purchase some cheap new pinion bearings in addition to the bearings that you are going to install. Grind the inner race of the cheap bearings so they slide over the pinion without being pressed on. This will save a bunch of time and frustration when adjusting or shimming the pinion depth. When it's all clocked in, just remove the dummy bearings and press the final good bearings onto the pinion. Oh, btw, the spartan locker is a pain in the butt to install with the diff housing in the vehicle. If possible, remove it and set it on a bench or jack stands with the yoke facing the floor. It's much easier to articulate the c-clips this way as long as you hold your tongue right. Good luck

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    All good for now
  

*by T***N on Reviewed in the United States on February 22, 2024*

All qiet again. Hope it will last

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-21*