1985 Differential & Rear-End Components

Differential, Eaton Detroit Truetrac, 35-Spline, Ford, 10.25 in./10.5 in., Full Floater Only, Each

Part Number: ETN-915A550

4.88 out of 5 stars ( 33 )

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Differential, Posi Performance, Limited Slip, 30-Spline, GM, 8.5 in., Truck, 3 Series, Each

Part Number: ETN-19559-010

4.55 out of 5 stars ( 11 )

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Differential, Posi Performance, Limited Slip, 28-Spline, GM, 8.5 in., 3 Series, Each

Part Number: ETN-19557-010

4.73 out of 5 stars ( 15 )

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Differential, Eaton Detroit Truetrac, 33-Spline, GM, 14-Bolt, 9.5 in., Each

Part Number: ETN-914A538

4.44 out of 5 stars ( 9 )

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Gear, Ring and Pinion, 4.11:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0045-1

5.0 out of 5 stars ( 3 )

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Differential, Detroit Truetrac, 29-Spline, Hummer/AMC 20 IRS, 3.08:1 + Higher, Each

Part Number: ETN-912A579

5.0 out of 5 stars ( 2 )

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Gear, Ring and Pinion, 4.29:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0079-1

5.0 out of 5 stars ( 1 )

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Differential Carrier, Limited Slip, 30-Spline, GM 10.5 in. (14-bolt), Steel, Rear, for 4.10 and Numerically Lower Ratios, Chevy, GMC, Each

Part Number: YGA-26030

5.0 out of 5 stars ( 3 )

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Gear, Pro Ring and Pinion, 3.70:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0004-1

5.0 out of 5 stars ( 3 )

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Differential, Posi Performance, Limited Slip, 31-Spline, Ford, 8.8 in., Each

Part Number: ETN-19588-010

5.0 out of 5 stars ( 1 )

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Differential, Eaton Detroit Truetrac, 31-Spline, Chrysler 9.25 in., Each

Part Number: ETN-913A368

4.67 out of 5 stars ( 12 )

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Gear, Ring and Pinion, 5.14:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0017-1

5.0 out of 5 stars ( 3 )

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Differential, Eaton Detroit Truetrac, 30-Spline, GM, 10.5 in. Ring Gear, 4.56 and Higher Ratios, Each

Part Number: ETN-915A547

5.0 out of 5 stars ( 2 )

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Differential, Posi Performance, Limited Slip, 30-Spline, GM, 10.5 in., Each

Part Number: ETN-19689-010

4.5 out of 5 stars ( 2 )

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Gear, Ring and Pinion, 4.86:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0060-1

5.0 out of 5 stars ( 1 )

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Differential, Eaton Detroit Locker, 31-Spline, Ford, 9 in., Each

Part Number: ETN-187SL17B

4.88 out of 5 stars ( 8 )

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Gear, Ring and Pinion, 3.42:1 Ratio, GM 7.5/7.625 in., Set

Part Number: YGA-10637

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Differential Carrier Components, Trac Loc Positraction Internals, 35 Spline, Dana 60/70, 35 Spline Axles, Kit

Part Number: YGA-16008

5.0 out of 5 stars ( 2 )

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Differential, Eaton Detroit Truetrac, 28-Spline, Ford, 8.8 in., Each

Part Number: ETN-912A562

5.0 out of 5 stars ( 5 )

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Differential, Eaton Detroit Truetrac, 27-Spline, Dana 30 10-Bolt, Volvo, Each

Part Number: ETN-912A588

5.0 out of 5 stars ( 5 )

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Differential, Eaton Detroit Locker, 30-Spline, Dana 44, Each

Part Number: ETN-187SL16C

5.0 out of 5 stars ( 1 )

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Yukon front 4340 Chromoly axle kit for 1979-87 GM 8.5 in. 1/2 ton truck and Blazer

Part Number: YGA-21325

3.5 out of 5 stars ( 2 )

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DIFFERENTIAL

Part Number: MGR-MGK-213

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Estimated Ship Date: Apr 14, 2026 if ordered today

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Ring and Pinion Gears,Yukon Gear & Axle 9.25" CHRYSLER, 3.90 Ratio Rear Ring & Pinion GearInstall Kit 1.62" Inside Diameter Axle Bearings & Seals

Part Number: YGA-10467

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Estimated Ship Date: Apr 27, 2026 if ordered today

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Ring and Pinon Complete Kit, CJ D30 STD/AMC 20 4.88

Part Number: MGR-MGK-130

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Estimated Ship Date: Apr 14, 2026 if ordered today

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