yes
No. The 2wd and 4wd trans cases are compleatly different.
no you can't the case is differnet and the tail shat is to short.
Yes it will bolt right in there with no problems.
you will have to drop the tank and remove the pump unit.
2wd would have 5X5
5/5
you don't. buy a new wheel hub
The firing order is 1 6 5 4 3 2 ...
It is in the exhaust pipe up by the engine exhaust manifolds.
When new they got about 20MPG I (this info is from an 84 suburban half ton 2WD, a 93 half ton 2WD ,83 blazer and an 84 half ton pickup 2WD.
1500 is 1/2 ton 2500 is 3/4 ton 3500 is 1 ton