there was an access hole drilled on the outside of the frame to get to the 4 bolts.
the truck is getting a further 2 1/2" spring lift, the PTO drive shaft is tucked up above and behind the rear diff, the rear fuel cell will be above the shaft with a notch cut in for the shaft to reach the rear PTO. under the PTO drive shaft/ fuel cell will be skid bars to protect both. the center fuel cell will be similar and it too will be protected by a skid bar assembly. the front shaft will be recessed into the factory fuel tank and both the factory fuel tank skid plate and the custom skid bar protection will protect both.
i wanted to have the PTO drive as level as reasonably possible and below the fuel tanks.
with all new steady bearings, seals, ujoints and mounts the full PTO drive should be vibration free, very quiet and reliable.
there is going to be a lever on the back bumper or just inside the rear door for engaging the PTO drive as well as an access panel above it should there need to be any servicing done.
we have made a bumper extension that is drastically overkill and the bumper will attach to these. these extensions are in direct alignment to the frame side rails and yet incorporating the rear cross member. there is 9 grade 8 bolts to each of the 2 bumper extension and from those the bumper will have 7 bolts per side. the tow mounts will be welded to the rear bumper and under the section where the frame extensions are located.
in theory, and realistically, you will have to yank the entire last 4" of frame and the cross members, PTO winch mounts front and rear and the factory reinforcement frame off the truck to have anything break.
the usual tire mounts that people use are the single 1500/2000/3000 lb spindle mounts. they are very strong but i do not like the idea of 40,000 km trip of back roads of north and south America bouncing a 120 lbs tire. i decided to make an upper and lower tire swing out mount which will bolt to the rear side body bar and welded to the rear bumper. this will give ample support to the tire swing out.
if you look at the pic you can see where the lower spindle will fit inside the support for the upper spindle. the upper spindle mount will be roughly where the solid rod is now. there is a cradle for the lower spindle welded inside the C channel main beam with a hole drilled through the top. from this the solid rod positioning peg holds the upper cradle in place perfectly in line with the lower so there will be no binding. the upper spindle cradle is made from 5" long 3.5" wide solid material that was turned on a lathe to fit the spindle perfectly. around the top of the spindle peg will be the weld. this will make for a very solid mount.
the owner asked that everything be overkill and extremely strong. i believe i will be accomplishing this goal.
clear as mud??
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How did you connect the side braces to the chassis, are there captive nuts, or did you drill and bolt right through the chassis?
Not sure I like the way the PTO connection to the winch hangs down under the rear cross member though.