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This ramp was a commercially available unit that was invented and first made in the San Francisco Bay Area during the early 1970s. I couldn't find any data plate or info on it, but I did a patent search on it and found it but the company listed in the patent wasn't around any longer. They are...

The length of the beaver tail is about 7 feet and the ramps are 5 feet with the short link ramps being about 1 foot. The height varies depending on which tractor I use. From the ground to the top of the deck at the rear where the short link ramps attach if I remember correctly is about 28" with...

I was concerned about the halftrack being higher than it would be on a low boy, but the trailer handles fine. There is no swaying on curves and it seems very stable. The total height is 11'3" so the height and center of gravity is actually less than most standard loaded box trailers. Loading...

I added a wooden liner to the chain box to hold the chains and the load binders along with a shelf with plastic bins to hold tie downs, gloves, coveralls, rags, etc. I also added brackets to hold my scooter on the ramp deck. With the ramp deck being so far back from the rear trailer axles, the...

To hold the halftrack down, I made D ring brackets. These were cut out of 5/8 steel plate and the D rings were welded to the brackets. The brackets are bolted to the trailer using 1 1/2" dia. bolts. Whats nice is that every few feet on the trailer rails, there are reinforced pads with 1 5/8"...

These are photos of the finished attached ramp. There is a good view showing how the pins slip into the hooks. To prevent the ramp from bouncing out of the hooks when going down the road, two large bolts were added to prevent vertical movement of the ramp. It also adds extra support for the...

Here is the ramp being attached to the trailer for the first time after all the fab work was completed. The ramp is tilted up slightly at the back and then the pins are dropped over the hooks on the trailer. The ramp is lowered down and the arms swing forward until they touch the pads on the...

These are pictures of the ramp being dry fitted to the trailer.

The ramp is held onto the trailer with (4) hook brackets. I designed the brackets after dry fitting the ramp to the trailer and taking measurements. I had the hooks CNC machined from 3/4 plate and tack welded them in place. Afterwards I dry fit the ramp again to make sure the hooks were...

The ramp was pretty banged up so I ended doing a whole lot of tweaking and repairing. Finally got everything straight and patched up. It has swing down arms at the rear to take up the load during loading. After priming the repairs, I power washed it and painted the front section where it bolted...

I found a detachable dump truck ramp on CL. It hooks onto the back of a dump truck box and allows a backhoe to climb into the box and therefore a trailer is not needed. I added this ramp to my M871 22 1/2 ton 30 foot long flatbed/stakebed trailer and make it detachable also. I cut the wiring...

I needed to haul my halftrack around so I came up with ramps for the M871 Semi-trailer. There seemed to be some interest in info I posted about the trailer and I took some photos during the fab process so I thought I would post them. Here is the finished product.

I used to be an engineer for a couple of heavy duty truck manufacturers and one of my projects was to improve the sound deadening. The very most important issue, which fortunately is the easiest and cheapest to improve, is to make sure that all cab openings are sealed. This seems so minor, but...

The trailer is an M871 22 1/2 ton with the ramp platform added on to the back. The scooter sits 5-6 feet back from the rear tandems. The tandem springs are really stiff and I think whenever the trailer hits a bump, it magnifies the jolt at the scooter-kind of like cracking a whip. I took it...

Apparently it is not a good idea to hang a scooter off the back of a trailer. Went for a 100 mile round trip this weekend and beat the holy crap out of the scooter. All (4) turn signals fell off, the handle bars got tweaked, and the spark plug wire pulled out of the boot for the spark plug...

See what I mean!

You would not believe the ration of sh*t I get every time I ride my "RED" scooter.

I took lots of photos during the fab process but I am having problems with that camera. If I get it straightened out, I will post them. Here a few more shots of the scooter mount. You can see the added trailer plugs for selecting the lights. You can also see the fold down step that I added on...

This is an M871 that I just finished. Found a removeable dump truck ramp and I attached it to the back of the trailer and it is removeable also. Added trailer plugs in the back to hook up either the rear trailer lights or the ramp lights(which get converted to 12 volts). I made bolt on brackets...

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