100 Series Cruiser LSD

Going out on a limb here as I have no concrete proof... The Tojo LSD is renound(as I've heard) for having a fairly short service life. I don't think they are adjustable... Time for a locker...???

Hi Mark, I would assume that you were in high range & therefore the centre diff was not locked? Also assume that the 100 set up is the same as my 80.
Cheers Tony.

Were both rear wheels spinning?.

Like the name suggests it’s a Limited slip Diff so there is a point where it will slip, like if one of the rear wheels has a majority of the car’s weight and the other has very little, At this point the diff will slip. Like somebody else mentioned the Toyota LSD have a limited service life, possibly due to the type of LSD design they use.

At least one back wheel must have been spinning??

Tojo LSD's are weak to begin with, they are pre set with a certain amount of pre-load on the clutch pack. Too much load will change road behaviour which is not favourable for the many shopping trollies that are on the road. The Patrol LSD is a much superior unit, it has a set a where the load on the clutch pack increases as one tyre tries to spins. I myself have asked about tightening up the LSD in my 80 Series but all have said it is not worth the effort, the only alternative , without going to air lockers is a mechanical locker like the Lok-right or Detroit soft locker.

Mechanical lockers make a bit of noise, locking and unlocking going around corners but it is a cheaper alternative to air lockers.

Press button to lock the centre diff.

Remember to unlock when out of the sticky/slippery stuff.

dont play with the original diff , get a lokka in the rear , they do make slight noise , but nothing you will hear after driving it for a week, there are other alternatives in Mechanical , but I havent been impressed by them. Another alternative is to go for a air locker but you will need 2k from wo to go

Thanks for the responses, for your furhter information,

- it was a reasonably steep track with washaway spoon drains sin it at the bottom where it joined the track i was turnign off onto the new one, hence the angles
- i was in low range first
- couldn't see if rear wheels were spinning but assume at least one had to be
- definitely know the front airborne one was

Was frustrating i couldnt get up as the track was meant to be reasonable and a bit of fun once over the first entrance section.

Met a guy two days later that had got up it in a Prado, but he did admit to havign front and rear air lockers on the car!

Tanks again for the feedback, guess i's now a question of which locker to get and when.

Mark

It sounds like your tyres are your problem not you rear diff. If both rear wheels had 'full grip' and you still weren't going anywhere, traction may be the primary issue. Was the ground moist and were you running h/t or a/t tyres? More traction at the rear would also help the existing lsd work better.

My suggestion - get some better tyres and then do something suspension wise to help keep them on the ground over these small rises.

I went out recently with a 100 series ifs in some slippery mud. Problems compounded themselves:
First problem was the standard tyres couldn't grip.
Had to go harder to get over mounds and out of ruts to compensate.
The front end then bottomed out in ruts because both sides compressed at the same time (going harder).
Hitting things harder exposed him to more potential damage.

Damon,

thanks for the responses,

- in answer to some of your issues raised,

Damon,

Firstly ignore previous post, hit the wrong button and cant find the edit one.

Anyway,

- tyres are BFG AT's 33"
- suspension is OME from ARB standard setup for 100 series
- yes it is an IFS

Tyre pressures were not let down so were still at about 40PSI

The main issue i kept coming up with was simply the fact that the track i was trying to go up had angles and a steepness that was too great for my car.

Also for the Patrol drivers out there my mate with the PAtrol, BFG Muddies, Rock crawler gears and an air locker in the front wasnt willing to ahve a crack for all sorts of reasons.

Judging by al the slip marks on it there were more cars than not that had struggled to get over the start, other than puttin a lot more boot into at the start so momentum carried them over.

Which with the kids in the car and the significant risk of damage i was not real keen at all to do, either to the verhicle or the track.

I have done some reasonble stuff in the last few months and this was the first time i couldnt get past an obstacle so pretty happy still.

Poor car has a lot of scratches on it now though.

Lastly if you put an Air Locker in a tthe rear does tis replace the LSD when driving normally or is it still there as before?

Thanks again for all of the responses.

Mark

The air locker will replace your LSD centre, therefore giving you an open diff until you engage the locker.

Hi there omn, a said toyo diffs (limo) are no where as good as the nissans especially in terms of logitvity.Pulling my diff out as I write sending away to get redone,can't afford an air locker at the moment is costing approx $550 including all new bearings axles etc plus diff, thats stripping it myself and putting back together. I dontthink i will get lockers till I update the old girl in 18 months.I keep changing my mind on getting another lux cause I dont like the ifs but gotta get with the times I suppose. Wife wont let me get a patrol to bit to drive she reckons. ah well. Regards Steve M

Most lsd's inc the nissan will not work if one wheel has no load on it at all .
What i normally do in this situation is apply the foot brake in the nissan's case and hand brake in the toyota this evens up the load on both tyres and 9 times out of ten both rear wheels will start driving .Give it a try one day on a hill or ditch you will be surprised how effective it is...

I'll second what gqpat suggests. Applying some brake at the same time is a "poor mans traction control" and is often enough to get you over the odd wheel lift.

Cheers
Phil

Mate the only way to solve your problem is sell the bloody thing we all know the 100s is rubbish, and no amount of money will make it better.

driven plenty of new/near new tojos and I can assure you the lsd are crap to start with If this sort of thing is a regular problem get a locker but dont waste time/money trying to improve the original diff