InMotion WS6930 Differential Pinion Seal - Rear
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InMotion

InMotion WS6930 Differential Pinion Seal - Rear

Brand InMotion WS6930
Position Rear
Material Leather
Inside Diameter 1.8120000000000001
Thickness 0.746
Outside Diameter 4.1280000000000001
Shaft Diameter 1.8120000000000001
Housing Bore 4.1230000000000002
Fits Edsel, Ford, and Mercury · 50 vehicles

Precision seal. Helps keep contaminants out and fluid in at the differential pinion.

Leather construction. Material choice supports a secure sealing surface for driveline service.

Dimension-matched fit. Specified diameters and bore measurements help confirm application accuracy.

$14.34Free shipping
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Overview

The InMotion WS6930 differential pinion seal is built for rear differential service where a precise seal is needed to keep contaminants out and fluid in. It fits a wide range of 1957-1958 Ford and Mercury applications, including classic Ford F-100 and Thunderbird models.

Use WS6930 when you need a replacement seal for rear differential pinion service on vintage Ford and Mercury driveline applications. The leather sealing material and matched dimensions support a secure fit at the pinion area.

Key Features

  • Leather sealing material for differential pinion service
  • Outside diameter of 4.128 inches for listed applications
  • Inside diameter and shaft diameter of 1.812 inches
  • Housing bore of 4.123 inches for dimensional match
  • Fits rear differential applications on 1957-1958 Ford and Mercury vehicles

Detailed Description

WS6930 is a differential pinion seal engineered to create a tight barrier at the pinion opening, helping protect internal differential components from moisture and debris while reducing the chance of fluid leakage. Its leather construction and specified dimensions make it a fitment-focused replacement for classic rear axle service. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. For buyers servicing Ford and Mercury driveline components, WS6930 provides a direct replacement option for the listed rear applications.

Common Uses

  • Stops gear oil seepage at the differential pinion area
  • Helps keep dirt and moisture out of the differential housing
  • Addresses worn or hardened pinion seal material
  • Supports service on rear axle assemblies with the listed dimensions
  • Restores sealing performance on classic Ford and Mercury driveline systems

Installation Notes

Confirm the housing bore, shaft diameter, and outside diameter before installation. This seal is listed for rear applications only, and fitment notes vary by vehicle and ring gear specification. Match the part to the exact vehicle and axle configuration shown in the fitment data.

Quality Assurance

InMotion manufactures this seal with precision-focused construction and quality materials for differential service. WS6930 is specified for the listed applications and dimensions to support accurate replacement selection.

This part fits 50 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1958EdselBermudaRear4.128in Outside Diameter
1958EdselCitationRear4.128in Outside Diameter
1958EdselCorsairRear4.128in Outside Diameter
1958EdselPacerRear4.128in Outside Diameter
1958EdselRangerRear4.128in Outside Diameter
1958EdselRoundupRear4.128in Outside Diameter
1958EdselVillagerRear4.128in Outside Diameter
1958FordClubRear4.128in Outside Diameter
1958FordCountry SedanRear4.128in Outside Diameter
1958FordCountry SquireRear4.128in Outside Diameter
1958FordCourier Sedan DeliveryRear4.128in Outside Diameter
1958FordCustom 300Rear4.128in Outside Diameter
1958FordDel Rio WagonRear4.128in Outside Diameter
1958FordF-100Rear4.128in Outside Diameter
1958FordFairlaneRear4.128in Outside Diameter
1958FordRanch WagonRear4.128in Outside Diameter
1958FordRancheroRear4.128in Outside Diameter
1958FordSkylinerRear4.128in Outside Diameter
1958FordSunlinerRear4.128in Outside Diameter
1958FordThunderbirdRear4.128in Outside Diameter
1958FordVictoriaRear4.128in Outside Diameter
1958MercuryColony ParkRear4.128in Outside Diameter
1958MercuryCommuterRear4.128in Outside Diameter
1958MercuryMedalistRear4.128in Outside Diameter
1958MercuryMontclairRear4.128in Outside Diameter
1958MercuryMontereyRear4.128in Outside Diameter
1958MercuryPark LaneRear4.128in Outside Diameter
1958MercuryVoyagerRear4.128in Outside Diameter
1957FordClubRearwith 9in Ring Gear
1957FordCountry SedanRearwith 9in Ring Gear
1957FordCountry SquireRearwith 9in Ring Gear
1957FordCourier Sedan DeliveryRearwith 9in Ring Gear
1957FordCustomRearwith 9in Ring Gear
1957FordCustom 300Rearwith 9in Ring Gear
1957FordDel Rio WagonRearwith 9in Ring Gear
1957FordF-100Rearwith 9in Ring Gear
1957FordFairlaneRearwith 9in Ring Gear
1957FordRanch WagonRearwith 9in Ring Gear
1957FordRancheroRearwith 9in Ring Gear
1957FordSkylinerRearwith 9in Ring Gear
1957FordSunlinerRearwith 9in Ring Gear
1957FordThunderbirdRearwith 9in Ring Gear
1957FordVictoriaRearwith 9in Ring Gear
1957MercuryColony ParkRearwith 9in Ring Gear
1957MercuryCommuterRearwith 9in Ring Gear
1957MercuryMedalistRearwith 9in Ring Gear
1957MercuryMontclairRearwith 9in Ring Gear
1957MercuryMontereyRearwith 9in Ring Gear
1957MercuryTurnpike CruiserRearwith 9in Ring Gear
1957MercuryVoyagerRearwith 9in Ring Gear