I have a 1991 Chev. Suburban, 3/4 ton,
2WD with a 454 and 4L80e transmission.
All totally stock.
Trans is tired .
I will be rebuilding a new to the truck 4L80e.
I want to update the transmission to the newer (post 1996)
style.
Question is WHAT year 4L80e are the best for all automatic...