Interesting. The first ones are clearly E0TZ-13064-A and E0TZ-13064-B, but according to the catalog there were no E
0TZ-A or -B's, just E
2TZ-A or B's. Or E
0TZ-L & M. But his box certainly says "E0TZ-13064-A" and "E0TZ-13064-B".
All that means is that the catalog is wrong, yet again. Apparently they were replaced, probably by the E2's, w/o "r/b" being noted.
Gary, AKA "Gary fellow":
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Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI