Transmission-powered Expedition Trailer

[Harald Hansen]

The Land Rover 101 had a PTO driven trailer at one point. Tom Sheppard brought some along on the Sahara crossing in the 70s. Didn't work out to well, IIRC.

Anyways, welcome aboard, neighbour! :wings:

 

[FotoValpen]

Sorry guys I forgot to mention that the trailer can be pulled up to 55mph. The PTO drive can only be used when in 4-wheel low. Now I do not know all the terminology I will try to explain as well as I can. But the diagram below should help.

1. Front axel
2. Gearbox
3. Cardan shaft to front axel
4. Power transfercase
5. Front PTO
6. Cardan shaft to power transfercase, winch and rear PTO
7. Cardan shaft to rear axel
8. Rear axel
9. Rear PTO (life for PTO expedition trailer! :smiley_drive: )
10. Cardan shaft to rear PTO
11. Power transfercase, winch and rear PTO
12. Cardan shaft to mid-mounted winch (this winch is missing on my truck )
13. Handle for activating winch
14. Helical worm gear for winch
15. Engine (Volvo B20 gasoline)
16. Handle for activation of PTO

 

[cruiseroutfit]

That makes sense, without a selectable T-Case I didn't understand how it could work one or the other, given your diagram I see how it only works in 4 Low. Prett neat

 

[FotoValpen]

Very cool and interesting indeed! What are your uses for the trailer? It is a very nice feature but may be unnecessary. I believe the rear PTO was for farm equipment, correct?

Uses are for expeditions i Sweden's rough nature when I am out on assignment. (photographer) It is also for fun. I am curious to how much the trailer can help. Being that it has a wide and very sturdy way of attching to the back of my truck I think it maight put me quite close to the large Volvo 6x6s.
This PTO on the back was developed for the use of just this particular trailer when the truck was equiped as a fire truck.

 

[FotoValpen]

In looking at the trailer pics it would appear that it employs a Dana type axle. I'm guessing a 44 series from the looks of it.

Correct you are! The axels on both the truck and the trailer are reinforced Dana 44. Salisbury Dana 44 19 spline to be more exact.

From the factory to front axel is without differential and the back has a limited slip.

BUT not for long! I am waiting on 2 Lock Right lockers from east coast gear supply.com. I will have full diff front and back. :victory: Although the rear axel needs to be rebuild with different driveaxels. I already have AVM hubs front and will put a pair in the back too so I can have a front wheel drive truck if I want.

 

[FotoValpen]

The Land Rover 101 had a PTO driven trailer at one point. Tom Sheppard brought some along on the Sahara crossing in the 70s. Didn't work out to well, IIRC.

Anyways, welcome aboard, neighbour! :wings:

Tack Harald! I will look you up the next time I am in the neighborhood.
Ever get to Sthlm?
Here are some pics from a little trip last fall to Rondane.

 

[FotoValpen]

One more for the gallery.

 

[Hilldweller]

Wow; that first photo at Rondane is spectacular.
I was able to wheel close to the glaciers in northern Alberta --- but they were nowhere near as grand.

Wow.

 

[RedRocker]

Cool Truck:victory:

 

[charlieaarons]

The Land Rover version of the powered trailer was not entirely successful. there was a tendency to induce rollover of the trailer and even the towing vehicle. IMHO you'd want the tires on the trailer to be very slightly smaller than the tires on the truck. the other way around would be very bad.

Charlie

 

[alan]

Great truck and project, I would love a power driven trailer.

I would be very wary fitting lockrite lockers.

 

[FotoValpen]

Great truck and project, I would love a power driven trailer.

I would be very wary fitting lockrite lockers.

Please explain why Alan. I would hate to make a grave error!

 

[alan]

Well from experience, they actually don't unlock, because you have natural windup between front and rear diffs, this force keeps them engaged, the odd accassion you might be lucky, but most of the time no way, the design is all good in theory but not in practice.

 

[Harald Hansen]

Tack Harald! I will look you up the next time I am in the neighborhood.
Ever get to Sthlm?

Please do. I'm in Stockholm almost every summer, catching the ferry to Riga. I like Sweden - I grew up in the 70s and 80s watching Swedish children's TV. Yours were better than ours! :elkgrin:

 

[Borrego60]

Your rig

Very cool looks sharp!