I have the Brembo GT brake upgrade and the supplied banjo fitting collides with the toe link arm and the lower bump steer bushing. It’s not even close. In the picture above the blue plug is where the banjo goes, but the supplied Brembo banjo fittings, let alone the banjo bolts and crush washers, won’t fit. The pile of nice discarded parts grows again.
To address this, I had to modify two parts. I machined a flat on the toe link arms with a mill. While the cutting process was straight forward, it was a pain-in-the-ass to fixture due to its awkward shape. I considered milling a flat on the lower bump steer spacers, but I assumed that they would rotate such that the flat was no longer aligned with the flat on the toe link arm. For this reason, I turned turned them on a lathe.
Even then things didn’t fit so I needed to find some new parts. Nobody specs the height of their banjo fittings, banjo bolts or crush washers so I had to call a bunch of places and get someone in tech support to either measure one or look it up in CAD. I wound up with parts from several suppliers, but as can be seen below, everything fits.
Abe used his hydraulic crimper to fabricate custom flex lines. They’re PFTE with braided stainless steel and a rubber covering. I 3D printed a bracket to keep the brake line in place. The brake line hole is oversized and has a large chamfer (shown in blue) on both sides to allow the brake line to slide back and forth as the suspension moves. I don’t think that heat will be too bad there, so the Onyx should hold up. If not, I’ll change materials.
