Front lsd

[wellsey]

Went to buy diff oil today and found out that the coil zooks were optioned with an lsd. Is this true and how do I tell if mine has one?

Cheers all, Wellsey

[j-top paj]

id say that would be in the rear.
i havnt heard of anyone with a factory front lsd yet

[Highway-Star]

Apparantly using LSD oil in an open diff won't be a problem, but other way around not good. So no need to worry.

Never heard of a Sierra in any form having an LSD...

To Check: Jack up one wheel on one axle, put transmission in netrual, try to turn the wheel. If the wheel turns and in turn turns the corresponding tailshaft, you have an open diff. If you cannot turn the wheel you have a working LSD, or a locked diff.

[wellsey]

I know that they where optioned with a rear, but this guy at the auto store asked me if the front was the lsd model because if so, I had to get different oil. He was specific, was the front the lsd model.

"Is the rear lsd?"

"Nope"

"Is the front?"

"WTF?"

Apparantly the castrol book has a listing for front suzuki sierra lsd.

So it sounds like he was on drugs?

[Highway-Star]

When you buy fuel filters, the appropriate one in Valvoline lists it as suitable for a Suzuki Sierra/Drover etc, and a "Suzuki Vitaro". I'm yet to find one of these Vitaros'.

Maybe wait to get a reply from someone who knows coilies better, but this does sound strange to me...

[j-top paj]

my vote is he's on drugs

[Gwagensteve]

I too have heard of a factory LSD as an option in the rear of a coiler but I have never seen one.

My guess is that it was available as a factory build option and the car would have to have been a factory order, so a 4 month wait or so.

Would have thought that it would be a clutch type LSD and pretty useless.

The only manufacturer to ever offer a front LSD as far as I am aware was ford in the F150's and broncos, US market in the 80's.

Steve.

[Dozoor]

Apparantly using LSD oil in an open diff won't be a problem, but other way around not good. So no need to worry.

Never heard of a Sierra in any form having an LSD...

To Check: Jack up one wheel on one axle, put transmission in netrual, try to turn the wheel. If the wheel turns and in turn turns the corresponding tailshaft, you have an open diff. If you cannot turn the wheel you have a working LSD, or a locked diff.

Sierras in europe had a cable operated rear locker from the factory pre wide track interesting little gadget .

[Gwagensteve]

So did Canadian market cars. I believe it was due to a design rule that stated that 2 wheels must be clamped by the park brake. It's easy to imagine that with a transfer mounted drum and an open rear diff, a car parked on an icy street could freewheel away if one wheel had very little traction.

However, this locker was not intended to work under drive load and is too weak for that use. The locker engaged with the handbrake.

I believe that cars set up with the locker also have a full floating rear axle. I saw a photo of a Canadian market LWB NT years ago in a Petersens that had drive flanges on the rear.

*one more to add to the myth file*

Steve.

[BenT]

Here's a pic from the Suzuki parts catalog of that factory diff lock.



It seems to be a standard semi floating axle with one axle shaft having longer splines for the locking collar. The housing also obviously has a hole in it for the activator.
And it has a separate floor mounted engagement lever. The parts manual even calls it a differential lock.

I remember looking at the floor pan of my zuk from underneath near the handbrake lever and seeing two sets of unused captive nuts under there - I guess for this and one for the factory PTO

Ben

[Dozoor]

Wouters site ,

http://www.euronet.nl/~icu05161/sper_e.html