I am 82" roughly to the top of my rhino rack pioneer platform (with the RL mounts). my garage height is 82.01", this is how close it is. but it slips in just fine.
There is no locking ring, what you are looking at is the timing gear for the injection pump, and the bolt in the center holding the pump into it. the FSM says to put one breaker bar on the crank pulley to hold it in place to keep from rotating, and use another to loosen the nut. (2 man job)...
for the record, i have a steel bumper, swingout, full size 35" spare, and have loaded up my trunk with a few hundred pounds of gear for the weekend and have never gotten the truck to show any type of sag or squat with the 222/223 combo.
your best bet is to buy one yourself in Japan or Europe and not pay the premium on one in the US already. send me a DM i can guide you in the right direction.
This was my report from about a year ago on my euro HDJ80 @ 336,000km. unsure if BEB's were ever done, but planning on doing them anyways in the next month or two
ended up answering my own question here after pulling the trigger on a PDI Airbox (def the most expensive intake i've ever purchased)
but WOW what a difference on the G-Turbo green wheel, turbo spool up is so much faster along with throttle response and overall power. also eliminated most of...
-OEM Original HDJ80 complete airbox from 93' euro-spec LHD truck (dont think theres any difference). great condition, some surface rust on the lower parts. includes K&N filter and inner fender piping if you want it. 170$ shipped to mainland 48
-Silicone intake adapter to fit factory airbox to...
those of you with Turbos, did you notice any difference in performance upgrading your Airbox? i'm on the stock 1HD one now, thinking about going the PDI route.
also saw Gturbo just came out with one but it uses a 79 series filter vs the PDI which uses a 200 series filter which is a little bigger
its well worth it especially if you live in an area with a lot of hills and mountain passes. haven't had any instances where it got in the way of any kind of regular maintenance.
i cant say for certain under full flex, i haven't had the opportunity to push it that hard yet. but the inner mud flap is really the only thing that protrudes out into the wheel arch, cant see anywhere else where it would rub.