Front propshaft: double cardon vs UJ

[o_teunico]

Hi all

A friend is experiencing too much play in the front prophaft of his Disco 300. Vehicle is lifted 3" with QT castor correcting radious arms and the Paddock sourced doublé cardon prop has come to the end of it´s life (it was non greaseable type).

We like the one that Bailey Morris makes for Gwyn Lewis, but it´s over budget. Will a phased single UJ 30º prop perform OK in this aplication? Single UJ type is less than half of the Price of the doublé cardon type.

[De Ranged]

A double carden joint takes out the fast slow motion caused by the elliptical rotation of a UJ... this is normally not an issue unless your drive shaft is at a good amount of angle... at 3" of lift I'd run a single UJ

I have to use single UJ drive shafts with some of the young lads trucks as they seem to think tall is good.... it does wear out the UJ faster and in theory wear out your tyres and drive line due to the pulsing, but I've yet to see indications of this... wear from the offroad use is way worse

I would suggest you get your drive shaft balanced since your going to be lengthing it

[o_teunico]

at 3" of lift I'd run a single UJ

That is what we wanted to hear! Thanks.

[Deej]

The standard propshaft has been fine on my lifted Disco but I don't have castor correction arms.

By correcting the caster following a lift the UJs will be forced to work at a greater angle and will fail sooner.

[o_teunico]

We now that, but regular greasing will help. In the worst case a replacement UJ can be cheaply replaced.

[FridgeFreezer]

At 3" lift I'd run... less lift.

[o_teunico]

Less lift is not possible because space is needed for the 285/75R16 tyres.

[Bowie69]

I'm running 33" Simex tyres and no more than 2" lift... grinder and hammer to the arches and away you go.

[o_teunico]

At last we have ordered a 30° phased GKN single CV one. Lets see how it copes.

[Rangy35]

You do know you get rebuild kits for your double cardone.

[o_teunico]

That was our first option, but did not find anything suitable for this non greasable aftermarket unit.

Yesterday recived an email. GKN is out of stok and, in two weeks they (Paddock) will send a Bailey Morris at same price.

[o_teunico]

New unit arrived. It´s already mounted in the vehicle. As you see, it´s phased (UJ at both ends in same position). Will pass some info in a few weeks about it´s performance.

[o_teunico]

The prop has been tested. Everything seems OK. There is a mínimum vibration when using engine braking, but it will be difficult to say if it´s because of the prop, as this vehicle is running some 33" remoulds and has suffered "death wobble" in the past.