My 94 will be 1 year for me April 6th, where has the time gone???
When first purchased I noticed that there were only two nuts attached to the ECM. And of course one disappeared.....so another member mentioned the size that they may be and I just couldn't find them any where, even checked ebay. I ended up with a smaller nut, but the correct fitment, so I went with them.....
Well today made another trip to Fastenal to see what they might have in stock. They came through with replacement u joint bolts for my 82, as I am replacing both TA's and stripped two of the bolts....

So after a few minutes they found the exact size for our ECM's, but a different color, oh well!!!
Here are a few pics, that show the original, the replacement and the smaller replacement that I was using.
Part#0162816 they are M5's.....cost $.22 a piece almost had to buy the whole box, but let me purchase just 8.....

And you can also use a 10mm combo wrench to attach just like the originals.
I figured with the correct nuts on there now I should pick up an extra 3HP.