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Eaton Detroit Truetrac 37 Spline Differential Dana 80 916A566 Differential, Truetrac, 37-Spline, 80, 3.73:1+ Lower, Each

SKU: EAT916A566

Differential Carriers

Eaton Detroit Truetrac 37 Spline Differential Dana 80 916A566 Differential, Truetrac, 37-Spline, 80, 3.73:1+ Lower, Each

SKU: EAT916A566

Differential Carriers

Sale ends in Calculating...

A$2,368.72 A$2,638.72
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.

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Description

Exclusive Eaton flash sale discount at StreetFX!

Talk about timing! This is a limited offer while stocks last on various Eaton part numbers. There's never been a better time to buy your Eaton upgrades, so what are you waiting for?!

This item is currently on sale!

Same-day payment required to secure promotional price. Promotions may end early or be extended based on stock levels or other factors.

Data: v2 - Desc: v4.2 - Upd: 2026-11-07 20:13:04

Data: v4.2 - Upd: 2026-11-10 23:09:09

Features

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Eaton
StreetFX SKU eat916A566
SFX Item ID 5062990
Accounting SKU eat-916A566
Manufacturer SKU 916A566
Manufacturer UPC 840379327557
Alternative References ETN-916A566

Differential, Detroit Truetrac, 37-Spline, Dana 80, 3.73:1+ Lower, Each

Eaton Detroit Truetrac differentials use a patented design of parallel-axis planetary helix gears to provide a quiet, automatic splitting of torque. They perform like a limited-slip differential under normal driving conditions, automatically transferring torque to the wheel with better traction when ground conditions warrant. These replacement units are available for dozens of axle applications.

Product Attributes
BrandEATON
Manufacturer's Part Number916A566
Part TypeDifferential Carriers
Product LineEaton Detroit Truetrac Differentials
UPC840379327557
Differential Case Design TypeDana 80
RemanufacturedNo
Aftermarket Carrier StyleHelical gear
Cover Bolts10
Carrier Series3
Axle Shaft Spline Quantity37
Manufacturer of AxleDana
Carrier MaterialSteel
Carrier Bearings IncludedNo
QuantitySold individually.
NotesFits 3.73 ratio and numerically lower. Caution, some factory Ford 3.73 ring gears were machined thinner to fit on the 4 series carrier.
Special AttentionEaton recommends a petroleum/mineral based GL-5 80W90 gear oil for all Truetrac differentials. Do not use synthetic gear oil or friction modifiers.

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