Most of the "Classics" releases from 1990-91 were altered in this way. Including:

Menasor
Bruticus
Superion
Defensor
Wheeljack, Sunstreaker, Sideswipe, Ironhide, Jazz, Prowl, Tracks, Inferno
Snarl, Sludge, Grimlock
The Throttlebots
Astrotrain, Springer, Sandstorm, Octane