Differential: which, SLD or not?

[Losna]

Hi again!

I've finally got my Megabusa, which is now sitting in the workshop to be thoroughly checked.

I've got a few issues, and I'll post them separately, if this is not a problem.

First issue: Differential

I'd like to know which kind of differential I've got.

I've been told (by the guy who sold me the car) it's a SLD.

But when in the shop, I rotated one wheel (with the car jacked up), and I noticed that the other wheel didn't rotate at all.  

1) Shall I suppose it's an open differential and not a SLD?

On the rear cover of the diff I found the following data:

DANA

43156

125-00

REV V

0124-97

2) What do all these numbers mean?

Someone (I suppose at Westfield) wrote with a feltpen "OIL IN 11-22-2002), and I know that the car was produced in 2002.

3) Which oil shall I put in (I've been told that open diffs and SLD diffs require different oils)?

A couple of pics:

clink link to enlarge:

from below:

click link to enlarge:

Thank you for your help!

[peterg]

QUOTE

But when in the shop, I rotated one wheel (with the car jacked up), and I noticed that the other wheel didn't rotate at all.

if it's not an LSD (Limited slip diff) the other wheel would turn in the opposite direction, with LSDs the other side can either not rotate or rotate slowly in the same direction so it's likely to be an LSD  

QUOTE

On the rear cover of the diff I found the following data:

DANA

43156

125-00

REV V

0124-97

2) What do all these numbers mean?

DANA manufacture diffs so it's just a model number and revision list (for incremental changes) AFAIK

[tex]

looks like the standard westy diff to me - from a freelander? with quaife internals - 3.21 ratio if correct - identical to mine if lsd

keep eye on ALL mounting bolts for coming loose - especially the allen head bolts. - if they come loose it could lead to breakages

[Blatman]

Find a car park. Do a donut. If it goes beyond 360 degrees and you can keep it going, it's an LSD...

Trying to tell what you have by turning one wheel and watching what the other does is pretty futile 'cos an ATB will behave like an open diff when you turn the wheels by hand. A plate type LSD behaves differently and a viscous type LSD behaves differently again...

[Losna]

Thanks for your answers!

- I had the mounting bolts tightened: some of them were loose...  I suppose this saved me from big expenses in the near future!  Very good advice, thanks again!

- LSD: I went on track, and although not being able to give it all in (errr.. cold track, old and stone hard tires, noise limit, errr...   DRIVER ABILITIES still to be developed  ;D) I think it really is a LSD: all the wheelspin I experienced was on BOTH wheels...

- SLD/LSD: I remembered the three letters of the acronym, but I misaligned them due to my lazyness (didn't look for it on the translator and directly translated from the italian "Self Locking Differential) ;D

[tex]

Thanks for your answers!

- I had the mounting bolts tightened: some of them were loose...  I suppose this saved me from big expenses in the near future!  Very good advice, thanks again!

- LSD: I went on track, and although not being able to give it all in (errr.. cold track, old and stone hard tires, noise limit, errr...   DRIVER ABILITIES still to be developed  ;D) I think it really is a LSD: all the wheelspin I experienced was on BOTH wheels...

- SLD/LSD: I remembered the three letters of the acronym, but I misaligned them due to my lazyness (didn't look for it on the translator and directly translated from the italian "Self Locking Differential) ;D

your english aint all that bad you know.. quite canny  

[GreigM]

As above, identical to the diff in my hayabusa - looks like a freelander with 3.21 ratio - so will be LSD.