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Hi guys,I plan to swap a 2.3 engine (J23) from an '04 Aerio (A/T) into my '98 Tracker (5spd). Both cars run and drive. I already did some research and read through some posts including ebewley's 2.3 swap into Sidekick Sport (great write-up and videos BTW), jstr's 2.3 swap into a '93 and a more recent one by Perryd but he swaps from A/T to A/T so I'm guessing our swaps will be different. Besides, I didn't want to hijack his post.After my research I had some encouraging and not so encouraging findings.Encouraging: J23 bolts up to my 5 spd tranny w/out an adapter plate and TT offers engine mounts. Phew! As I have no metal fabrication tools Not so encouraging: I'll need some parts off of a J18 or J20 engine including; exhaust manifold (cast iron), coolant tube (from the head to the radiator), passenger side engine hoist eye-lit (with the T-tube welded), oil pan and oil pick up tube. I was on the phone with Dillon at TT and he has been great help. I already located these parts.I still have a few questions though. 1) Do I need any other parts off of J18 or J20. I can get parts off of a '99 Tracker with a 2.0 and A/T located at a local salvage yard.2) Is my flywheel going to work? Would a J18-J20 flywheel work?3) Is my radiator going to work? If not, would J23 radiator fit in my Tracker? If not, what radiator options do I have?4) Do I need an ECU from a 5spd Aerio (my donor has an A/T)? In Matt Verley's how to video, I noticed that he swapped a J23 from an Aerio with A/T to a Sidekick with 5spd. He did not mention it not working. I'm not clear if he used J18 ECU or J23 ECU. In my case, I'll have to use the J23 ECU.5) Are there any write ups/posts that would help me figure out wiring?Thanks.