Street. Track. Everything between.
Your garage Find parts for your vehicle Select year, make and model to narrow your search.

Usa Standard Gear

USA Standard Gear Spartan Lockers SL GM8.5-30 Differential Carrier, Locker, Steel, 30-spline, Rear, GM 8.5 in., Each

SKU: SPZGM8.5-30

Differential Carriers
USA Standard Gear Spartan Lockers SL GM8.5-30 Differential Carrier, Locker, Steel, 30-spline, Rear, GM 8.5 in., Each

Usa Standard Gear

USA Standard Gear Spartan Lockers SL GM8.5-30 Differential Carrier, Locker, Steel, 30-spline, Rear, GM 8.5 in., Each

SKU: SPZGM8.5-30

Differential Carriers
A$1,889.20
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
View cart 0
We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description

Spartan lockers are affordable, reliable traction. These USA Standard Gear Spartan lockers are mechanical lockers that fit into a standard differential carrier, replacing the open spider gears. They do not use thrust washers and have a revolutionary spring and pin design to make installation a snap! Spartan lockers feature high-nickel 9310 chromoly drivers and couplers for added strength. Give your vehicle great traction and save some cash. Drop in Spartan lockers for improved traction. They're available for a variety of makes and models spanning more than a half-century.

Part Type

Differential Carriers

Data: v4.2 - Upd: 2026-10-16 00:14:23

Specifications

Product Attributes - Brand
USA Standard Gear
Product Attributes - Manufacturer's Part Number
SL GM8.5-30
Product Attributes - Part Type
Differential Carriers
Product Attributes - Product Line
USA Standard Gear Spartan Lockers
Product Attributes - UPC
883584170419
Product Attributes - Differential Case Design Type
GM 8.5 in.
Product Attributes - Remanufactured
No
Product Attributes - Aftermarket Carrier Style
Mechanical locker
Product Attributes - Axle Shaft Spline Quantity
30
Product Attributes - Manufacturer of Axle
GM
Product Attributes - Carrier Material
Steel
Product Attributes - Carrier Bearings Included
No
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
Includes a heavy-duty crosspin shaft.

Reference Information

Brand Name/s Usa Standard Gear
StreetFX SKU spzGM8.5-30
SFX Item ID 4898014
Supplier Item Code 4898014
Manufacturer SKU GM8.5-30
Manufacturer UPC 883584170419
Alternative References SPZ-17041, 30-spline

Compatibility

Loading compatibility information...

Keep shopping

More from Usa Standard Gear