First of all, The 97 trucks did not have the 700r4 in them. The 1/2 tons had the 4L60E and the 3/4 tons used the 4L80E. Any year 700r4 transmission will work in the 84 as long as it is out of a truck.
It should be a 700R4
The 1984 700R4 will interchange with a 1988 700R4. The lock-up harness would have to be modified, changed or have a hydraulic lock-up kit installed. An easy fix would be to put the harness and swithes from the 1988 transmission into the 1984 transmission. The 1984 transmission is a weaker design but a working transmission will get you going.
no
Automatics would include th350, th400, or the 700r4, if you want a overdrive.
700r4 NEW ANSWER: That would be the 400 turbo
YES.
1900pounds
31/10.50/15
most common was the turbo 400 and the 700r4
no, they have different bellhousings and oil pans
they work fine in my 1984 3/4 ton Chevy with a 383 stroker.
replace the worn parts.