Steeda S550 Mustang Differential Bushing Bolt Upgrade Kit - 12.9 Hardware (2015-2020)

$8.00 (21%)
Part Number: 555 4448
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Steeda's very popular Diff Bushing support system comes with factory equivalent grade 10.9 hardware. In some high horsepower applications more strength might be needed.

In these extreme cases Steeda is now offering grade 12.9 hardware upgrade kit. The standard kits will continue to come with 10.9 hardware.

Product Benefits
  • Stronger than OEM Hardware
  • Zinc plated for a long lasting finish
  • Strongest bolts you can buy

CA Residents: Cancer and Reproductive Harm WARNING

Fitment & Features


Manufacturer: Steeda Autosports

Vehicle Fitment:

Fits Model Year: 2015, 2016, 2017, 2018, 2019, 2020
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