I got hung up and had to walk home! Advice needed on the 4WD system

[BigfootBushy]

Is the standard rear diff fitted with an LSD or is the traction control all that gives the limited slip function?

[dhard]

Originally Posted by BigfootBushy

Is the standard rear diff fitted with an LSD or is the traction control all that gives the limited slip function?

Pretty sure the traction control replaces lsd at least that's what i gauge from the book.

[BigfootBushy]

I thought that was the go. Sure doesn't feel like a LSD centre. Just wasn't sure because everything I read about oil for the rear diff says to add the LSD additive.

[wranglertj]

Originally Posted by dhard

Pretty sure the traction control replaces lsd at least that's what i gauge from the book.

Yes that is correct. The BAS is better than a LSD in my experience also (atleast on the JK wrangler anywway)

[ZJ from WA]

Originally Posted by dhard

That's spot on. Also why the eaton electric lockers like in the rubi are a good thing they disengage straight away so if you need to turn you can flick the front off straight away. I have found they are much quicker than others to respond.

lockers i have found generally dont disengage till there is no binding pressure from the gears being placed on them. this is true from centre diffs to front diffs i have used from my jeep to dads old range rover and army 110 centre diffs. this is due to the deactivating springs or what ever mechanism used do not apply huge amounts of pressure usually a jolt bump or turning can unlock quickly to lock in you apply pressure. the 110's have light when you move the centre lock off the light stays engaged till it actually does disengage. it can stay on for 1km on flat smooth straight road or get bumped off in 1m.

[BrisNut]

Originally Posted by ZJ from WA

lockers i have found generally dont disengage till there is no binding pressure from the gears being placed on them. this is true from centre diffs to front diffs i have used from my jeep to dads old range rover and army 110 centre diffs. this is due to the deactivating springs or what ever mechanism used do not apply huge amounts of pressure usually a jolt bump or turning can unlock quickly to lock in you apply pressure. the 110's have light when you move the centre lock off the light stays engaged till it actually does disengage. it can stay on for 1km on flat smooth straight road or get bumped off in 1m.

That can be true on hard surfaces, I found wriggling the stering a bit left & right disengaged my Range Rovers centre diff on a dirt road pretty quick, similar with the ARB locker in the back of it and the Patrol, they all seemed to disengage better off road of course where traction was less prevalent.

My Jeep seems slightly better on engage and diengage than the ARB's, but there's not that much in it.

I had twin LSD's in my GQ for a while and I would have to say although the Patrol LSD's are the best factory LSD available, the Jeep traction control has my vote as being better, I would even go so far to say, I'd rather the Jeep Traction Control than a pair of AutoLockers.
I actually loved my Patrol with an Air Locker in the rear and LSD in the front, the opposite of what most Patrol owners do, and the Jeep Traction control gives the same benefits of breakage free throttle usage, with the front locker if all else fails

[dhard]

Originally Posted by ZJ from WA

lockers i have found generally dont disengage till there is no binding pressure from the gears being placed on them. this is true from centre diffs to front diffs i have used from my jeep to dads old range rover and army 110 centre diffs. this is due to the deactivating springs or what ever mechanism used do not apply huge amounts of pressure usually a jolt bump or turning can unlock quickly to lock in you apply pressure. the 110's have light when you move the centre lock off the light stays engaged till it actually does disengage. it can stay on for 1km on flat smooth straight road or get bumped off in 1m.

Very true about landy's i'd sometimes get worried that the centre one wasn't going to disengage but the eaton lockers on the rubi seem to come off very quickly every time.