why cant there be lsd to both front and rear

[zippy]

being completely cack with mechanical things, i was wondering why someone has not invented a system with lsd to both front and rear??? this would mean that all wheels would have power in all conditions??? - right?

[zippy656]

i think there must be some one wholl know

terranosurous was looking into it i THINK!

[extreme-4x4]

some cars do. just ours dont
but terra and makitfit are working on one

i can see it working cos in 2wd you dont use the front diff anyway so it would only be lsd in 4wd . so yes the theory is there you just have to get the parts to fit , same ratio same direction and all that

but yes very possible very soon

[lacroupade]

I think concensus is that a vehicle with front and rear diffs locked (which is effectively what you'd have, the word is limited) can be very unmanagable - they are normally used in specialist forestry or military vehicles and the like

[extreme-4x4]

yes but we cant use 4wd on tarmac anyway. and lets face it we dont need 4wd for most off road stuff , so we dont use the front diff.. unless we are in pretty boggy stuff.

so all in all id go lsd as aposed to diff lock

i like the idea
it will be very effective on a terrano and wont even be in use on the road or gravel.
with lsd you will still get some steering unlike a landy with diff lockers on


terra will be along soon and spill the beans i hope

[lacroupade]

Originally Posted by extreme-4x4

yes but we cant use 4wd on tarmac anyway. and lets face it we dont need 4wd for most off road stuff , so we dont use the front diff.. unless we are in pretty boggy stuff.

so all in all id go lsd as aposed to diff lock

i like the idea
it will be very effective on a terrano and wont even be in use on the road or gravel.
with lsd you will still get some steering unlike a landy with diff lockers on


terra will be along soon and spill the beans i hope

but where would you be going that needs a setup like this? fitting lockers apparently doesn't have that much effect other than making the steering want to centre all the time but can be got used to.....and a locker can be easily incorporated into an existing setup.....how would you fit an LSD to a T2? sounds like a major piece of work to me...snuffle snuffle snuffle....

[extreme-4x4]

paullllyyyyyy

if it was easy, or cheep nissan would have done it


but as you know we are pushing the boundries as to what these trucks were really designed for

yes a lot of work to modify things and often will improve performance by a little....

but if you are always looking for a little extra or to do something you cant , then you have to make changes

like the disc break conversion i was working on, masses of work . for a little extra play and possible advantages , but well worth the effort

lsd on front will make really big improvement to an already very capeable truck

with plenty of time and money, i recon you could get one of these up to competition spec



oh and answer your texts paul.... whats up you sulking or somit lol

[lacroupade]

no mobile signal mate, not til tomorrow midday at least....

[extreme-4x4]

well i put messanger on pm me your email thing and we can chat there ay

or ring da farm you got number 01273 ok

[Terranosaurus]

Originally Posted by lacroupade

but where would you be going that needs a setup like this? fitting lockers apparently doesn't have that much effect other than making the steering want to centre all the time but can be got used to.....and a locker can be easily incorporated into an existing setup.....how would you fit an LSD to a T2? sounds like a major piece of work to me...snuffle snuffle snuffle....

Front LSD as extreme says would make a massive difference as would a front locker. LSD is easier to fit if you can find one as both methods mean you need to swap the planet gear set up out but with a locker you still need some form of actuation be it electrical or air/vacume.

Some older datsuns and some newer Nissans and Subarus use te same base R180 derived diff, its just getting your hands on the right one. The Viscous LSD from a Nissan Pulsar wont work with custom driveshafts I've got one ad looked at that.

A truetrac or quaiffe (as fitted to Focus RS) gear type diff would be pretty good up front as they don't effect the steering at all, might need to left foot brake if cross axled but they do maintain drive to both axles as long as both has some resistance but they aren't as solid as other types, next would be a viscous (like fitted to te old RS turbo's) but again they never really lock but aren't too bad in their effect on the steering. A plate type LSD would give good drive but may cause understeer effects - could use manual hubs with one to unlock if need a tight turning circle.

[lacroupade]

The light bulbs arrived thank you Simon!

[Terranosaurus]

Originally Posted by lacroupade

The light bulbs arrived thank you Simon!

you tried em yet?

Sorry they were late but between everything going on here (have now moved out.....) and postal strikes etc.

[zippy]

my thoughts on posting this thread was if we could get lsd on both front and rear then you would not need to consider whether to use 4wd - it would already be there. As i said, i am completely thick with regards to anything mechanical but thought that 1. you would not need a partime system 2. it would be always on and 3. if you did get into slippy conditions then power would go to all four wheels as opposed to three with the present set up. No wind up means no worry of when on tarmac.

My other thought was that wifey uses the T2 for work - shes a nurse who goes to patients homes in the dead of night in a very rural area whose roads are not gritted in winter. Her work radius is 20-30 miles from home and she is uneasy about using 4wd (its a woman thing!!). A system like this would mean she wouldnt need to move - I quote, 'that second gear stick thingy',.

Lee

[extreme-4x4]

Originally Posted by zippy

my thoughts on posting this thread was if we could get lsd on both front and rear then you would not need to consider whether to use 4wd - it would already be there. As i said, i am completely thick with regards to anything mechanical but thought that 1. you would not need a partime system 2. it would be always on and 3. if you did get into slippy conditions then power would go to all four wheels as opposed to three with the present set up. No wind up means no worry of when on tarmac.

My other thought was that wifey uses the T2 for work - shes a nurse who goes to patients homes in the dead of night in a very rural area whose roads are not gritted in winter. Her work radius is 20-30 miles from home and she is uneasy about using 4wd (its a woman thing!!). A system like this would mean she wouldnt need to move - I quote, 'that second gear stick thingy',.

Lee

so you need a gaylander or an xtrail then something in permanent 4wd
same a a 4wd car like

crap off road though

[Terranosaurus]

Originally Posted by extreme-4x4

so you need a gaylander or an xtrail then something in permanent 4wd
same a a 4wd car like

crap off road though

Yes I think what you're actually wanting is a centre LSD. The T2 isn't fitted with any form of centre differential which is why it can't be driven on hard dry surfaces in 4wd mode. A simple open centre diff akin to a landy would suffice, preferably with a diff lock or may be a centre LSD which is more ID ten T driver proof but ultimately not as good. But either would allow 4wd mode to be used all the time - but why???? Acually fitting one to a T2 without changing at least the transfere box and possibly the gearbox too I suspect would be nigh on impossible, there is just unlikely to be any available space for one as it was never designed to accomadate one.

Selectable 4wd is a great compromise especially when teamed with a rear LSD. Our trucks will go an awful long way in 2wd mode, most people will never actually need to engage 4wd (as long as they can drive half competently of course). I broke a front driveshaft at Sibbetoft back in June and still spent the rest of the day playing, fairly impressing at least one landy owner at what a T2 could do and all the more as it was doing it in 2wd. Have also been out laning with said broken shaft and got through some pretty nasty bits by careful driving. Sure I'd love a front LSD but then I like some others on here do push mine somewhat.