Will a 1991 or a 2002 transmission fit in a 1995 Blazer?
Ask a wrecking yard, they have the Hollander interchange book that tells them.
1991=no Its not electronic.
2002=maybe, if the 1995 is PWM (Pulse width modulated) and it does not have the removable bell housing.
Need to know more about the trans coming out of the 1995.