Help! I’m looking for definitive part numbers for the brake components used on Wilson’s finned Ali backing plates. Mine have been on the car for 20 years and I refreshed them over the winter after piecing together bits of information from various posts over the years. I know the shoes are Wagner Z340 but I’ve read both Buick and Ford wheel cylinders. I’ve got 62-73 bronco cylinders on there now (after trying 58 buick) and I’m having a problem with the leading shoe not sitting on the anchor pin when fully retracted, as if the piston is bottoming out. I’d really like to renew the return springs too, anyone got a definitive list? I’m in England so local parts suppliers are useless.
The empty boxes included in the front finned backing plate set I bought showed this info: Wheel cylinders - Benxix 33206 & 33207 or Wagner 35325 & 35326 or AutoStar 13206 & 13207 Shoes - WagnerQuick Stop Z340
The Wagner Quick stop Z340 show to be 1961 - 1970 Buick full size = Electra rear brakes. eBay item number:305492337030 According to Rock Auto that is an economy grade lining though. My experience is that while the "economy" lining might not stop quite as well as the performance lining it doesn't eat up the surface of the drum as much and normally they are less noisy than the hot lick lining. The Wagner 35325 shows up as the rear wheel cylinder for a 96 Ford E 350 Van according to this Ebay add. eBay item number:112151746297
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