How to service and repair the differential case and ring gear for the 70 Limited Slip on Ford E-150 Econoline?

To correct the Model 70 Limited Slip differential, match-mark parts, bring off the ring gear (where necessary) and hang an axle shaft on the part. Break parts apart, check over and immerse clutch packs in friction modifier. Refit with great caution with great attention to alignment and torque requirements to achieve maximum service.

How to service and repair the differential case and ring gear for 70 with limited slip on Ford E-150 Econoline?

To fix the Model 70 differential case with limited slip, match-mark parts, strip off the ring gear (where necessary) and apply a vise to keep everything in place. Take apart, check wear parts, wet clothes, replace and lubricate the clutch pack properly. Make sure bolts are tight and have the correct specifications of torque.

OEM Ford E-150 Econoline Differential

Front Differential

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Ford E-150 Econoline Differential Case Part Number: 9L3Z-4204-B
$129.39 MSRP: $173.85
You Save: $44.46 (26%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Case - Differential; Case; Differential
- Replaces: 1L2Z-4204-AA, 1L2Z-4204-BA, F85Z-4204-AA, E7TZ-4204-F
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1984-2002 Ford E-150 Econoline | Base, Custom, XL | 6 Cyl 4.2 L GAS, 6 Cyl 4.9 L GAS, 6 Cyl 4.9 L LPG, 8 Cyl 4.6 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.4 L BI-FUEL, 8 Cyl 5.4 L GAS, 8 Cyl 5.8 L GAS
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Ford E-150 Econoline Differential Case, Front Part Number: 9L3Z-4204-A
$142.56 MSRP: $203.08
You Save: $60.52 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Case - Differential; Differential Carrier, Front; Case; Differential
- Position: Front
- Replaces: E7TZ-4204-E
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1984-2002 Ford E-150 Econoline | Base, Custom, XL | 6 Cyl 4.2 L GAS, 6 Cyl 4.9 L GAS, 6 Cyl 4.9 L LPG, 8 Cyl 4.6 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.4 L BI-FUEL, 8 Cyl 5.4 L GAS, 8 Cyl 5.8 L GAS
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Ford E-150 Econoline Differential Case Part Number: 9L3Z-4204-D
$196.48 MSRP: $264.00
You Save: $67.52 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Case - Differential; Differential
- Replaces: F75Z-4204-BB
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1997-2002 Ford E-150 Econoline | Base, XL | 6 Cyl 4.2 L GAS, 8 Cyl 4.6 L GAS, 8 Cyl 5.4 L BI-FUEL, 8 Cyl 5.4 L GAS
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Ford E-150 Econoline Differential Assembly, Rear Part Number: 9L3Z-4026-H
$264.83 MSRP: $380.77
You Save: $115.94 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Differential Carrier Housing, Rear; Differential Carrier, Rear; Differential; Differential Case; Case
- Position: Rear
- Replaces: 9L3Z-4204-C, 9L3Z-4026-G, F75Z-4204-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1997-2002 Ford E-150 Econoline | Base, XL | 6 Cyl 4.2 L GAS, 8 Cyl 4.6 L GAS, 8 Cyl 5.4 L BI-FUEL, 8 Cyl 5.4 L GAS

Ford E-150 Econoline Differential

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Ford E-150 Econoline Differential Parts and Q&A

Differential Case
9L3Z-4204-B
Q: How to service and repair the differential case and ring gear for the 70 Limited Slip on Ford E-150 Econoline?
A: To correct the Model 70 Limited Slip differential, match-mark parts, bring off the ring gear (where necessary) and hang an Axle Shaft on the part. Break parts apart, check over and immerse clutch packs in friction modifier. Refit with great caution with great attention to alignment and torque requirements to achieve maximum service.
Differential Case, Front
9L3Z-4204-A
Q: How to service and repair the differential case and ring gear for 70 with limited slip on Ford E-150 Econoline?
A: To fix the Model 70 differential case with limited slip, match-mark parts, strip off the ring gear (where necessary) and apply a vise to keep everything in place. Take apart, check wear parts, wet clothes, replace and lubricate the clutch pack properly. Make sure bolts are tight and have the correct specifications of torque.