Uprated 12.9 grade front diff bolts for Evo 4-6
Known to be an issue on all early cars as the front diff housing bolts have to transmit drive to the center VCU. Upgrading the bolts along with suitable chemical locking irradiates the problem in most road / track applications.
Supplied with loctite for chemically locking new bolts in place.
For use in the transfer box.