Yes this is a great FAQ
Nothing I say set in stone, because stranger things have happened, but I think you have a 100 series. Same ih8mud forum, but may want to check out the 100 series part
May have more prevalent info for your truck.
100-Series Cruisers - IH8MUD Forums
Although the 80's guys know what up.
And the "
" is warm welcome to the cruisers