302 alternator help is it 1g or 3g?

Miastang

Member
Jul 4, 2020
6
1
13
Uk
Hi everyone, I bought a car with 1990 302, the car has a fair few mods from headers to transmission, I’m changing the alternator but there is not a single identification number on it?? Can someone tell me if this is a 1 or 3g alternator please, all it has is motorcraft brand name and number 2 on it!
As it’s quite modified it may be likely they upgraded alternator too and understand there is a some wiring mods when upgrading to 3G so didn’t want to get the wrong one.

many thanks in advance
 

Attachments

  • 655CEF66-4A90-4A3D-AA65-0BA1AF9BBB50.jpeg
    655CEF66-4A90-4A3D-AA65-0BA1AF9BBB50.jpeg
    460.3 KB · Views: 91
  • AA7019CD-2F21-4098-8812-01BD6A8ABE30.jpeg
    AA7019CD-2F21-4098-8812-01BD6A8ABE30.jpeg
    470 KB · Views: 77
  • 4557F5EC-5F30-4BCD-B5B5-2491B68FF452.jpeg
    4557F5EC-5F30-4BCD-B5B5-2491B68FF452.jpeg
    448.8 KB · Views: 77
  • Sponsors (?)


3g or 6G. Hard to judge its size by the pics

Appearance mostly. The 6g is a small case version of the 3g with better cooling, but I believe they are 110A. Came on 01-04 v6 Mustangs

this list is incomplete

I believe the 86-93 mustang alt us considered a 2G alt