A/C compressor for 1987 firebird formula

[dzer]

I need to replace my A/C compressor and accumulator on my 1987 Firebird Formula. The original is a Harrison (which I can't find) but I see Four Season and AC Delco. Is either one better than the other and is their a better manufacturer for my car ?

 

[melsg5]

Harrison is the supplier for GM they never sold them under their name. Rockauto shows they have the GM compressor. They also have the accumulator.