pull transmission out too. swap transmissions on the ground, not in the car.
need cherry picker, new fuel lines, radiator coolant, new engine and transmission fluids, drain the transmission before you take out the drive shaft so you dont spill transmission fluid everywhere. I dont know how dan did it exactly, but unplugg the harness from the ecu and pass it though the firewall, dont disconnect every harness item that is on the engine especially if it is an origional factory nissan install with all the emissions and service crapz on there. If you have the smaller jack stands make sure they are 3-4 clicks up if you mount them at the front subframe, if you have the large truck\van jack stands then just get the subframe ontop of them will put the car high enough. drain fluids, engine oil, transmission fluid, ps fluid and radiator coolant. get some pb blaster or wd40 for misc nuts\bolts.
maybe push the shell out of the garage and pressure wash it\ degrease it so its clean. Maybe clean the new engine before it goes in?
have one person under the car doing stuff, exhaust, drive shaft, transmission mount, engine mounts, draining fluids ect. While the other person up top undo the fuel lines, brake booster line, ps lines, radiator hoses and wiring harnes.
Have refreshments ready where you are working, dont stop work washing your hands going inside to get a drink. keep the stuff outside and get the cups greasy, short breaks. Publix sweetened ice tea is nice. or water.
Dan and I pulled his engine out to replace the TO bearing and had it back togeather in driving condition in 5 hours total, 2 ppl, in the garage, on the floor, no air tools. Just do it.
Have cheater bars of all different shapes and sizes. !
new oil filter, transmission fluid.
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