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Instruction Sheets for Part Number ETN-912A556
Eaton Detroit Truetrac Differentials
Differential, Eaton Detroit Truetrac, 28-Spline, GM, 8.5 in., Rear, Each
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Overview
Brand:
Manufacturer's Part Number:
912A556
Part Type:
Product Line:
Summit Racing Part Number:
ETN-912A556
UPC:
840379305982
Differential Case Design Type:
GM 8.5 in.
Remanufactured:
No
Aftermarket Carrier Style:
Helical gear
Cover Bolts:
10
Axle Shaft Spline Quantity:
28
Manufacturer of Axle:
GM
Carrier Material:
Steel
Carrier Bearings Included:
No
Quantity:
Sold individually.
Notes:
Designed for 1998 and earlier applications with 28-spline axles. Must use special large carrier bearings with 1.781 in. I.D. and 2.891 in. O.D. race (See Suggested Parts tab). For use with 2.73 and numerically higher gear ratios.
Special Attention:
Eaton recommends a petroleum/mineral based GL-5 80W90 gear oil for all Truetrac differentials. Do not use synthetic gear oil or friction modifiers.
Eaton Detroit Truetrac Differentials
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.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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