Better with the trailer running slower than faster. If it's faster it pushes the tractor around and will lift the drawbar when going uphill. I've experienced a tanker with a driven axle that didn't have the gearing quite right.Yes wheel/ tyre size will be important . I suppose the trailer running slightly faster would be better than slightly slower.
And of course Wouldn't be used with pto engaged on a hard surface, would it , just like you dont with a 4wd tractor.
Bedford running gear I think they used a lot ex army about all gone now but why they didn’t keepUsed a home made one many years ago to cart cabbage in winter. That was on a 135.
It is a long time ago but my memory of the axle was a lorry axle rather than a tractor axle. If you put a tractor axle on aren't you going to need tractor wheels too?
That’s exactly what I’m thinking of building. I’ve a rear axle of a Ferguson tef20 I was going to use and pull it with a Massey Ferguson 135.A neighbour of mine has land drive trailers for taking turf off the bog. He has them on mf 135s and 35s. They have triple wheels on the tractors and trailers. The trailers are built on a mf 35/135 rear axle. He puts the tractor into land drive pto when he goes onto the bog and knocks it out of pto when he is on solid ground. Its amazing the load they can carry on soft ground.