BMW E30 Upgraded Full Differential Mounting Hardware Kit (Grade 10.9)

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Price:
Sale price$20.00 USD Regular price$30.00 USD

Description

This bolt kit matches OEM measurements but is far superior when it comes to corrosion resistance, strength and durability.

Class 10.9 steel is at least 25% stronger than medium-strength steel screws. The flange distributes pressure where the screw meets the surface, eliminating the need for a separate washer.

  • Black-Phosphate Bolt
  • Black-Oxide Nut
  • Class 10.9 Steel
  • Flanged Hex Head
  • Black corrosion-resistant-coated steel is more corrosion resistant in wet environments than zinc-plated steel 
  • Screws meet ISO 898-1 and comply with specifications and testing requirements for material quality.

    Kit Includes:

    (x1) 10.9 Grade Flanged Hex Head Bolt (60mm for diff bushing)

    (x1) 10.9 Grade Flanged Hex Head Nut (for diff bushing)

    (x4) 10.9 Grade Flanged Hex Bolts (diff to subframe)

     

    BMW E30 Differential Bushing Torque Specs:

    1984-1987

    • Differential to Subframe = 81-91 ft. lb.
    • Differential Bushing (bolt & nut) = 59-64 ft. lb.

    1988-1990

    • Differential to Subframe = 59 ft. lb.
    • Differential Bushing (bolt & nut) = 64 ft. lb.

     

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