It is highly unlikely since the body style, including the windshields, changed in 1988.
YES they are the same.
NO. You need one from 1988 to 1999
Yes
NO
85 mph.
NO! it will explode
couple feet
Yes it will fit.
A direct bolt on, no.
An equivalent GMC Caballero
Any smallblock Chevy engine will physically "fit" into a 85 Impala
can I put a 99 Chevy 4l60e transmission in my 86 k5 chevy blazer