Wiper motor/washer assembly

[bigblock73]

Are the wiper motor/washer assemblies interchangable for all years, 73-87? My 73 unit is toast, and all the used ones I have seen have their own issues as well. I would like to buy a new one, and would prefer a later model one because they are slightly smaller than my 73 unit. Are they the same regardless if you have delay or non-delay wipers?

Anyone have any info on this?

If you can, post a pic of yours if possible and provide the year of the truck, I would like to see the differences between the years.

Thanks in advance fellas.