I was recently asked what mods were required for the V6 swap. So I thought I would copy it here, just for interest sake. Below is a list of SOME of the work I did.
-engine mounts
-body lift (so engine and radiator fit under the hood. Mine required 3 inches to fit the rad
where I wanted it.)
-shortened rear driveshaft and put XL-7 slip yoke on (professionally done)
-mounts for different rad
-mounts for power steering res.
-mounts for intake and other misc
-wiring...lots of it(well over 100 hours) (It has 5 computers)
-steering shaft (I had to change where the upper u-joint was located in order to clear the
exhaust manifold.
-move brake manifold (the one on the side of the frame)
-brake pedal switch and mounting plate
I did the engine and tranny/tc swap. The whole thing all in one go. Saved a lot of money and time not having to figure out how to adapt a different tranny/tc. I also used the XL-7 instrument cluster, had to cut out the dash to fit it in(still haven't made a shroud for it yet).
XL-7 was 4:25 gearing. Tracker diffs are 5:13. It's quite little low geared, really nice for trail riding, etc, but not quite so nice on fuel mileage on the highway. It's about 10% lower than stock. I do plan on going with bigger tires in the future; that will solve my 10% lower issue. I didn't use front or rear diff's. I didn't swap steel front housing because it was different gearing, had a weird freewheel mechanism, really just different and didn't want to mess with it at the time. I didn't use the rear because there is currently no aftermarket support. No Lockers, spools, axles, etc, and obviously if I wasn't using the front diff, the gearing in the rear was again 4:25 not 5:13. Mostly I was just not interested in going that route so I didn't look into it much.
Stuff that was a direct bolt in, or compatible:
-gas pedal (for cruise control)
-steering linkages, u-joint, and vibration isolator
-front driveshaft
-tranny crossmember mount
-power steering lines
-trans shifter (Tracker was a manual transmission, now 5 speed auto)
-throttle cable
-exhaust runs down the driver side
-heater hoses are on the passenger side in pretty much the right location. (with a 3 inch body lift)
Computers I used:
-ECM/PCM
-TCM (transmission control module)
-BCM (Body control module - so gauge cluster would work properly)
-4XController (I have push button 4WD)
-Combination meter (gauge cluster - yes it has a computer)
I did think that about covers it. So many things, I'm sure I forgot something.
(Added)
A list of XL-7 parts that I used:
-Engine
-Transmission/Transfer case
-Transmission mount
-Power steering pump
-Radiator
-Combination Meter(instrument cluster)
-TCM (transmission control module)
-BCM (Body control module)
-ECM (Engine control module)
-Front Driveshaft
-Rear Driveshaft slip yoke and u-joint
-Power steering resi.
-steering shaft coupler, u-joint, and vibration damper
-gas pedal
-Transmission shifter and cable
-Wiring harness (lots of wires, but not all of the harness. I cut every wire to fit.)
-Entire engine/tranny side of wiring harness
-Exhaust pipe (shortened and customized to fit)
-Small muffler (those things have 2)
-4WD push button
-"Power" push button
-Cruise control module
-Cruise control controls
-Brake pedal (just the pedal)
-Brake pedal switch
-Transmission cooler lines.(used different external cooler)
-Radiator hoses
I think that's about it...
P.S.
I am selling some of the parts I didn't use. I've already sold enough to almost pay for the purchase of the entire parts vehicle! If that isn't a good argument to work with a complete donor vehicle...