Not sure who has the best clearance hitch aftermarket, BUT I did score an OEM Mitsubishi hitch from the junkyard, without having to sleep at a Holiday Inn Express.
-After sandblasting, this thing weighs a ton, has 5 bolts per side to mount it. 3 up from bottom, one from inside out into frame, one from outside through frame
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sticker from the junkyard
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For Gen 3 Limited owners, I discovered a trick to get access to that nasty through-frame bolt on the passenger side near the rear Heat/Air unit.
-Four, 10 mm bolts hold the A/C exchanger. Two are visible from the underside near the frame rail. One of the other two is accessed by pushing the body cladding aside a bit and inserting a 1/4" drive socket with extension from underneath. The last is the trick.
Once you get it out, the entire A/C heater box is now mobile/flexible enough to gain reasonable access to the bolts. I only got 1/4 throw on the ratchet, but it's a darn sight better than the open end wrench flip method.
-Remove these 10mm bolts and the access panel from the wheel well.
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-Here's the hidden 4th bolt holding the A/C unit in:
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-Here's the access to the through frame bolt on both the OEM recovery bar, and the OEM receiver hitch. looking up from the creeper...(top of picture, socket opening facing driver's side of vehicle).
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-Here's the A/C box dropped down a bit, after the access panel is removed
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After lots of tightening, loosening, re-aligning, re-tightening, re-installing the one washer that stuck to the cardboard while painting, (does that ever happen to anybody else?), finally, installed. "High and tight" like a military haircut. 17" hitch height to inside top of receiver tube, not bad for our Gen 3s.
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-side view
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-Finished product on the test pull. Sharp-eyed viewers will notice a slight nose dive on the trailer, and the trailer jack is awfully close to the spare tire. No worries, 2" rise, extended shank, (13") ball mount on the way.
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It pulls like a dream compared to my E-150 Club Wagon. I took measurements, and when loaded the rear wheel well arch on the Montero only dropped 1.5", the front rose only 0.5". The 5-speed select shift and 4.30 gears is a huge improvement in my situation. Trailer only weights 3000LBS loaded. Next up is wiring my brake controller in.