Just scored a 26/23 set for $150 from this guy.
Hightower Racing Transmission
310 Robertson Way
Travelers Rest, SC
29690-8842
What a super guy! He builds all types of Jerico trannys and has a pile of used parts.
He also builds his own version of the Jerico (from his own castings designed by him) and has designed many upgrades for older stuff.
If your serious about Jerico this is the guy.
Fred