yes
The 1995 4Runner was the last model to be released from that series. The engine from 1990 until 1995 can all be swapped relatively easily.
If your asking for the bolt pattern on the Toyota 4runner. It is a 6 on 5.5.
Typically, yes. Most 1990-1995 4runner's came with the same factory 3.0 V6 engine and are interchangeable.
2 shocks on the front of the 4runner. One on each side
With great difficulty
Yes.
96 and up for obd2
Yes
6 quarts
look on left side of engine
my 95 4runner seems to get about 15 to 16 mpg on city, and 18 to 19 mpg on highway.