I have a 1985 S-10 with a 2.5L (threw a rod) and 4 speed manual trans. I have a friend with a 2.2L out of a 1999 S-10 with an auto trans.(he has wiring harness, computer, only thing missing is the alternator). Will the 2.2L bolt up to the manual trans.? What has to be modified to install 2.2L in a '85 truck? Another possibility 5 speed manual trans. and 2.2L from 2nd gen. install in '85 truck? Would in need gauges from 2nd gen.? What else? Any information would be great.