way back when I had my '67 Falcon, the MSD box I bought for it 6 months prior went bad. instructions say to contact MSD for a replacement, but I called Summit to let them know what was up, and they simply said they would take care of it and to ship the bad 1 to there returns center, and they would get a new 1 right out, which ended up being sent rush delivery. that was 5 months outside of the Warranty that Summit had on the part. I havn't used Summit in a while. Bought my ladder bars from Jegs, because there Jegster bars and the only supplier of course