To answer your question I would need to know the year of your Celebrity as well as which one of the four transmissions it has.
it weights about 750 lbs without the transmission
I found one source that says a 1986 Chevy Celebrity has a curb weight of 2714 pounds. Different options would change that weight.
How much does a single cab chevy dully weigh
2,689-2,912 lbs. Look here for more info: http://auto.howstuffworks.com/chevrolet-celebrity5.htm
How mcuch does a 2003 Chevy Malibu weigh?
How much does a Chevy Malibu 3.1 liter V6 weigh?
to much
5 qts
2150lbs
About 350Lbs
Here is a fact sheet on the Chevy celebrity http://auto.howstuffworks.com/Chevrolet-celebrity.htm/printable I found this really interesting
134 lbs