So i have a 7747 $42 and have access to a programmer. Which EEPROMS do i need?

 

The first thing I would suggest is to read. Start with the stickies right above the posted threads. This is a question you could have had an answer for already. The 7747 takes a 2732 Eprom. to use a EEprom requires a conversion to your ECM. You can also READ about that conversion and where to buy.

 

It is difficult to find a 24 pin EEPROM that will fit into your ECM. What most people do is install an adapter board that allows you to install a widely available 28 pin EEPROM made by SST. The part number is 27SF512 and you can get them from www.mouser.com for about $1.50 each (cheap).