Is it a real R/V or a conversion van?
GMC Vandura was the name used by GM for the full sized vans and cab and
chassis units for a lot of years.
The 35 means it is a one ton rated base vehicle.
Year wise, look at the VIN number,
From 1973-79 the 6th digit of the 13 digit VIN number is the last
number of the year
3 = 1973
9 = 1979
For 1980 and up the year digit became a letter and the 10th digit in the
new 17 digit VIN number.
A = 1980 follow the alphabet with each year equaling the next letter
Q = 1996 (final year on the Vandura line)
The Brougham was a trim package name used by a a few different up-fitters.
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Steve W.