Yes. The Bronco body style didn't change again until after 1989.
no
Top speed is 85 mph.
85 mph
probably not since the 96 is a little narrower than the 85 i would say no
sounds like its not getting fuel
The cab and front sheet metal will fit but you will have to bobb your bed about 11 inches shorter.
Any of the seats from the 80-85 model years should work.
I believe your 85 probably puts you with a 13b under your hood. I cant say for certain the location is the same as the 12a, and I hope for everyones sake they saw their error and moved it somwhere sensible. But if not,and its the same as my 12a was the task ahead of you is insanly more difficult than it should be.The freeze plug {one} is located on the back of the block behind the flywheel,{manual trans.}And to access and replace it I had to drop the tranny and flywheel. After attempting this with engine in the car only to discover I didnt have room enough to get the leverage on a giant breaker bar to remove nut on encentric shaft.{no air tools}I highly recomend you just pull the moter. Your going to be time and nerves ahead. Note: Only the 84-85 GSL-SE models had the 13B. GSL and GS have the 12A. Shouldn't be different either way.
Thre is no gap on the plug as it a surface fire plug.
2.8 in 84 and 85. 2.9 in 86 thru 90
Inside the alternator. On my 85 it's the silver box on the passenger side fender.