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Drivetrain› Differentials and Rear-End Components

USA Standard Gear

ZP Dana 44 30 Spline 3.92 & Up Spool

Name: ZP Dana 44 30 Spline 3.92 & Up Spool
Brand: USA Standard Gear
SKU: ZP FSD44-4-30UP

$293.80

SKU: ZP FSD44-4-30UP

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Overview

The USA Standard Gear ZP FSD44-4-30UP is a steel spool designed for Dana 44 axles with 30 spline axles and a 3.92 and up gear ratio. This spool provides 100% lockup, ensuring full traction to both wheels simultaneously.

A spool is an ideal choice for dedicated off-road and drag racing applications, offering a cost-effective way to achieve maximum traction. However, it is not recommended for street-driven vehicles due to its inherent nature of locking both wheels.

Show original supplier description

The USA Standard Gear ZP FSD44-4-30UP is a robust steel spool engineered to replace the differential carrier assembly in Dana 44 axles. It is specifically designed for applications requiring 100% lockup and maximum traction, making it suitable for dedicated off-road and drag racing vehicles. The spool features 30 spline axles and is compatible only with 3.92 and up gear ratios. Its design provides continuous 100% traction to both wheels at all times, which is beneficial in extreme off-road or racing scenarios. It is important to note that this type of spool is not recommended for street-driven vehicles as it can cause tire scrub and handling difficulties in normal driving conditions. Furthermore, a customer review indicates that this locker does not fit in a limited-slip carrier. If your differential is a limited-slip type, you will need to purchase an open carrier or a locker that includes its own carrier.

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

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Specifications

Brand	USA Standard Gear
Part Number	ZP FSD44-4-30UP
Category	Drivetrain

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Shipping

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