Replacement bearing kit engineered for Mile Marker NP203 4x2 conversion kits part numbers 501, 502, 503, and 505 for 1973 to 1979 Ford, Dodge, and GM vehicles equipped with New Process 203 transfer cases.
Mile Marker NP203 4x2 Conversion Bearing Kit is engineered as a direct service replacement for previously installed Mile Marker NP203 4x2 conversion systems including part numbers 501, 502, 503, and 505. Designed for 1973 to 1979 Ford, Dodge, and GM vehicles equipped with New Process 203 transfer cases, this bearing kit restores proper operation and long-term durability to converted part-time systems. Over time, bearings within any transfer case conversion assembly are subject to wear due to load cycles, heat, and drivetrain stress. This replacement kit provides the necessary high-quality components required to maintain smooth operation, proper shaft support, and reliable performance in demanding driving conditions. Precision-manufactured to meet the specifications of Mile Marker?s NP203 conversion assemblies, this kit ensures continued drivetrain efficiency and dependable engagement. Ideal for rebuilds, preventative maintenance, or long-term restoration projects, the NP203 replacement bearing kit helps extend the service life of your part-time conversion system while maintaining the performance standards Mile Marker is known for.
  • Direct replacement bearing kit for Mile Marker NP203 4x2 conversions.
  • Restores smooth transfer case operation and shaft support.
  • Designed specifically for PN 501, 502, 503, and 505 kits.
  • Ideal for rebuilds and preventative maintenance.
  • Maintains long-term reliability of NP203 part-time systems.

Information:

Engineered specifically for Mile Marker NP203 4x2 conversion assemblies; professional installation recommended during transfer case disassembly; inspect gears, shafts, and seals during service to ensure proper function and long-term reliability.

Application Summary:

Year Make/Model
1973-1974 Chevrolet Blazer
1975-1979 Chevrolet K10
1973-1974 Chevrolet K10 Pickup
1973-1979 Chevrolet K10 Suburban
1975-1979 Chevrolet K20
1973-1974 Chevrolet K20 Pickup
1973-1979 Chevrolet K20 Suburban
1977-1979 Chevrolet K30
1973-1974 Chevrolet K30 Pickup
1975-1979 Chevrolet K5 Blazer
1974-1979 Dodge Ramcharger
1975-1977 Dodge W100
1973-1974 Dodge W100 Pickup
1977-1979 Dodge W150
1975-1979 Dodge W200
1973-1974 Dodge W200 Pickup
1975-1979 Dodge W300
1973-1974 Dodge W300 Pickup
1978-1979 Ford Bronco
1973-1979 Ford F-100
1975-1979 Ford F-150
1973-1979 GMC Jimmy
1975-1978 GMC K15
1975-1978 GMC K15 Suburban
1973-1974 GMC K15/K1500 Pickup
1973-1974 GMC K15/K1500 Suburban
1979 GMC K1500
1979 GMC K1500 Suburban
1975-1978 GMC K25
1975-1978 GMC K25 Suburban
1973-1974 GMC K25/K2500 Pickup
1973-1974 GMC K25/K2500 Suburban
1979 GMC K2500
1979 GMC K2500 Suburban
1977-1978 GMC K35
1973-1974 GMC K35/K3500 Pickup
1979 GMC K3500
1974-1979 Plymouth Trailduster
Attributes
California Proposition 65 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Country of Origin (Primary) US
Emission Code Legal US
Finish Natural, Natural
Harmonized Tariff Code (Schedule B) 8483604040
Hazardous Material Code N
Life Cycle Status Code Available to Order
Material Combination, Combination
NAFTA Preference Criterion Code B
SDR Required Flag N
Series Premium Series, Premium Series
Warranty Time 1
GTIN 00758626007018

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