One problem related to transmission fluid leaking has been reported for the 1997 GMC Suburban. The most recently reported issues are listed below.
Rear end of transmission crack in half causing fluid to leak out vehicle had to be towed on flat bed 140 miles to get home the entire end of the transmission was broke had to defect in the casting of housing or a design flaw car has high miles due to much travel mechanic stated never saw transmission brake like that before contacted dealer and had dealership mechanic look at it but they stated they were not going to help us they say lack of maintanince to the car we have had our car checked every 3 -4 thousand miles oil changes ect we have receipts for everything we feel GMC had a craftsmanship defect on should cover this even if we are out of warranty.