Hey, I forgot to mention I pulled out my 5.8 gas and dropped in the 7.3 PowerStroke Diesel

I used 2 sources... Wirediagram.com...not very good

then I used Alldata...but you need to have an account....($24.95)

I used 1995 E-350 ( my van & the year of my donor van)
Then I used 1995 F-250 (the year of my cluster W/ tach)

My new "tach" cluster was from a standard trans. truck....easy to convert (1min) with shift indicater from YOUR cluster.

Diagram states "gas & diesel"...cluster must be right for diff. RPM range and fuel gauge markings...Tach is powered off of ECU or PCM (forgot, been a while) Also states "8 cyl. only"
Once you learn to use AllData it is incredible the amount of info

I could fax you what I have if the years are the same, good luck,
Al