6. Once we were able to attach the flexible line to the frame side, we needed somewhere for it to go on the axle side. We used Techna-Fit’s T-block and cut the head off a bolt and welded it to the rear axle. We were then able to bolt the T-block to the axle and finish running the flex line. Techna-Fit also has extreme heavy-duty lines that feature an additional layer of Kevlar, but we weren’t able to use them because of the fittings we needed at the calipers.