You don't have a clue on what you are talking about. If you Mount the calipers in the front on 67-72 with a stabilizer and see how far it steers. The hose with the extended line is to mount them in the front 73-76 with the rail attachment behind the wheel on the frame. Several hoses from different models will work. I get them from a Local NAPA Dealer. He gets me them for a 72/73? b-body they seam to fit perfect . On 69 back you need to dremmel out the attachment bracket on the rail to get the clip on. These hoses eliminate the extra metal line attached to the hose needed on the front mounted cars with the hose attachment on the rail behind the wheel. As seen on the picture posted above. I have been using these hoses for many Big bolt conversions when mounting the calipers in the rear of the spindle. Like I said there are probably many other hoses that will work but these work for me the best on 70-72 a body cars they are a direct fit.
