More then likey it has a 3:42 gears. But the way to know for sure is to COUNT the teeth on the ring gear and the pinion gear and then divide the pinion into the ring gear and that will tell you for sure.
Stock they had 230 hp with 385 ft pounds.
Yes
No they will not.
depending on model of truck.
Diagram of 1990 chevy truck steering column
yes, they should be identical.
Yes it will.
A stock 1990 Chevy silverado with a 350 cubic inch, 5.7 liter V8 engine produces 210 horsepower.
Which engine?
That would be the 700R4
7.9 to 1
Yes they will.