New rears are available on eBay. Company in Duluth MN sells them. I have bought two sets of rears and they fit and work fine. $45.50 per set. https://www.ebay.com/itm/Both-rear-wheel-cylinders-for-Oldsmobile-1942-to-1966-for-your-brake-job-save/302821835575?fits=Year%3A1962%7CMake%3AOldsmobile%7CModel%3ACutlass&hash=item4681968337%3Ag%3AxqwAAOSwR9pbHoGi&_sacat=0&_nkw=brake+wheel+cylinder+1962+Oldsmobile+Cutlass&_from=R40&rt=nc&_trksid=p2380057.m570.l1312.R1.TR0.TRC2.A0.H0.TRS5#vi-ilComp
