no
YES.
It should be a 700R4
1900pounds
It will bolt on, but it will look funny, The 92 truck is not as wide as the 81 truck. so the bed will hang out wide against the back of the cab. Total different body style.
31/10.50/15
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.
Yes.
One can find reviews about a 1984 Chevy Custom Pickup Truck on Kijiji. On Kijiji, one can find reviews of almost anything, including big pickup trucks.
The rear brakes on a 1984 Chevy truck are drum brakes.