Help starting my 1988 GMC 1500

[Gvcg]

Hi everyone brand new to posting but a long time lurker! I have enjoyed reading and getting TONS of help from here. But now it is time that I post because I can't get this solved yet?

My 1988 GMC 1500 has been starting really hard lately. And today it just stopped starting. It turns over and cranks but I am not getting any spark. I have already replaced the ignition coil and still no spark. Could the distributor need to be replaced next? And just so you all know I have checked out all the fuses and recently had the fuel pump replaced. So any suggestions would be very much appreciated.

Thanks!