Bump, still have some 72-76 tube sets.
For sale are three sets of late type tubes with the larger big end.
This is a great way to to the push rod seal replacement so you do not have to clean the old set. No fun.
Minor dents on some and some pocked area from rust.
Some O rings are missing but will be installed before shipping.
Asking $65 a set shipped in the U.S. New tubes are about $6-!2 each and a set of Viton O rings runs about $20.