Vehicle & Technical > Discovery
6 Wheel disco
muddyjames:
--- Quote from: "thermidorthelobster" ---There are two general ways to get 6 wheel drive:
2) Second transfer box driven off the PTO, to drive the rear axle. You can then engage/disengage at will, but you'll get wind-up if you run in 6x6 all the time as there's no differential between the front 4 and rear 2 wheels. Of course, you have to find somewhere to stick another transfer box. This is the transmission my 101 had, based on an LT95.
--- End quote ---
one gets transmission wind up with 4x4 so 6x6 off road would be like 4x4. just use diff lock as and when needed ie when middle axles come off the ground!
Another transfer box. hmm. not much room one thinks to fit it under a disco.
Range Rover Blues:
You'd be looking at an SVA test when finished.
One of the problems with 6x6 from a 4x4 is that one axle will have twice the torque of the others without something pretty fancy in the middle but Thermid's old 101 had one of the neatest solutions I'd seen. Another company makesd a conversion diff but again it will split the torque between the back 2 axles, so the car becomes front drive biased.
Oh yes, and a 9 seater might be a minibus :o
muddyjames:
--- Quote from: "thermidorthelobster" ---There are two general ways to get 6 wheel drive:
1) A pass-through diff in the middle. This is the method Foley generally use and is nice and simple. Not sure where you get the diffs though.
--- End quote ---
Mate of mine with the 6x6 has lots of info about these axles but where one buys one from I'm not sure. He needs a new cog for his middle diff asit is chain driven and getting rough quotes of £800 for 1 cog so a whole axle will be costly too me thinks.
If a 6x6 rangie is possible then a 6x6 disco has to be as it is the same underneath isnt it? Just the shell ontop is different?
muddyjames:
--- Quote from: "Range Rover Blues" ---You'd be looking at an SVA test when finished.
Oh yes, and a 9 seater might be a minibus :o
--- End quote ---
9 seater is max one can drive on new style license but exempt from congestion charge, not that I drive in london!!
thermidorthelobster:
--- Quote from: "muddyjames" ---one gets transmission wind up with 4x4 so 6x6 off road would be like 4x4. just use diff lock as and when needed ie when middle axles come off the ground!
Another transfer box. hmm. not much room one thinks to fit it under a disco.
--- End quote ---
Yeah, but with a 6x6 off a separate xfer box, you'll get windup even without difflock, because there's no diff between the rear axle and the front pair. I used to run the 101 with the front 4 wheels driving most of the time; if the middle axle came off the ground, I'd engage diff lock; if I got stuck I'd drop into 6wd. You could also put the front xfer box into neutral and run it as a 6x2 but there wasn't much point.
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