Strength and Durability to Ensure Longer Life. Save time & money with a loaded assembly. Get genuine performance from genuine Spicer. Spicer parts are designed, engineered, and manufactured to meet or exceed OE requirements, because they are OE parts, ensuring a perfect fit with our full line of industry-leading axles. That's why Spicer is the name you can trust for top performance and durability. Spicer Carrier Cases are made in the USA and utilize net forged spider gears which are substantially stronger then aftermarket cut gears.