Full 1993 GMC Sierra 3500 Review
What's New for 1993
A new four-speed electronic automatic transmission, called the Hydra-matic 4L60-E, is introduced for lighter duty service (there's also an optional heavy duty 4L80-E electronic four-speed auto transmission).
Time and effort is put towards improving corrosion protection. Seat recliners were added, as were front cupholders, Solar-Ray tinted glass and new exterior colors. Scotchgard is added to interior seating and trim fabric for stain protection.