That would be the large diameter line
by wackin it ;)
http://www.alldatadiy.com/
Yes.
700 R4 transmission.
3/4 ton.
YES, They are the same engines. That would be a direct bolt in.
It is on driver side of Transmission behind the shift linkage
Yes.
The 1990 Mitsubishi does not have an air conditioning recharge line. The vehicle has an air conditioning recharge port. You can recharge your air conditioning system through the low pressure port on the air conditioning compressor.
yes 90 trough 99 are the same base models
The most common problem that causes that is Bad valve seals in the head.
It uses a vacume