hey try
www.classicperform.com for the 6 lug disk brake kits and other stuff like p/s for the straight axle
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www.xframeimpala.com
68 4x4 short fleetside deluxe cab 327 air
56 big window short stepside 235 dual 1 brls
64ImpalaSS 327
70 C10 LWB fleetside custom/10 350/TH350