Drivetrain› Differentials and Rear-End Components

Moser Engineering

Custom-Length 33 Spline Rear Axle

$830.00

SKU: A33CST

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Moser Engineering A33CST is a custom-length axle designed with 33 splines. Constructed from premium alloy steel, it is forged using Moser-designed tooling and induction heat-treated to optimize torsional strength. The axle is 100% magnafluxed for durability.

They are available in custom lengths and can be configured to fit various rear-end setups, including different bearing sizes and bolt patterns. Options for customization include access holes, lightening holes, and Pro Flange profiling.
Show original supplier description
The Moser Engineering A33CST Custom Length Alloy Axles are high-performance components designed for demanding applications. These axles are crafted from premium alloy steel, forged with Moser's proprietary tooling, and undergo induction heat treatment to enhance torsional strength. Each axle is rigorously magnafluxed to ensure defect-free quality and superior durability. Engineered for resilience, the A33CST axles are built to endure the significant stresses associated with both competitive racing and spirited street driving. Moser offers extensive customization options, allowing for axles to be made to precise custom lengths to fit virtually any rear-end setup. Buyers can specify their required spline count, as well as a wide range of popular bearing sizes and bolt pattern combinations. Additional service and lightening options are available to further tailor the axles to specific needs. These include the addition of access holes, lightening holes for reduced weight, and the PRO FLANGE option which features profiling and pocket milling for a specialized finish. Gun-drilling is also available for further weight reduction. A Bearing, Stud & Retainer Package is offered separately to complete the installation. Compatibility is broad, with options for various rear end types including 9" Ford, 8.8" Ford, 12-Bolt Chevy, and 8 3/4" Mopar. Housing end types, bolt patterns, stud types, and brake configurations can all be specified to ensure a precise fit. The custom nature of these axles means they are made to order to meet exact specifications.

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

BrandMoser Engineering
Part NumberA33CST
CategoryDrivetrain
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