Thread: Detroit locker salisbury axle

Welcome
Have a look at this link there is an owners manual that will answer many of your questions
There is an operation test that will tell you if anything is abnormal

NoSPIN Differentials

I know nothing of Belgium but presume its not hot maybe this is a factor

Lubrication:
All NoSPIN differentials are designed to operate in those lubricants recommended by the vehicle/axle manufacturer. No special lubricant is
needed. For very cold weather applications, use the lightest oil the axle manufacturer will allow to overcome possible sluggish reengagement
of the driven clutch assemblies.

I found similar symptoms happened to mine when I had too much play in the gear train. Check the splines on the drive flanges and the inner end of the axles too. The crush tube for the pinion may not be quite right, unlikely but give it a wiggle by hand anyway-check anywhere that play could be-slip joint in the tailshaft too. My problem was the shims in the centre diff were worn, one had disintegrated completey, once it was reshimmed all the banging and kangaroo hopping went away instantly.

Originally Posted by isuzutoo-eh

I found similar symptoms happened to mine when I had too much play in the gear train. Check the splines on the drive flanges and the inner end of the axles too. The crush tube for the pinion may not be quite right, unlikely but give it a wiggle by hand anyway-check anywhere that play could be-slip joint in the tailshaft too. My problem was the shims in the centre diff were worn, one had disintegrated completey, once it was reshimmed all the banging and kangaroo hopping went away instantly.

Is yours also fitted with a detroit locker ?
Thing is, it didn't do al this before the locker was fitted.

I have checked before with the manual, but will do again.
Weather here is like 30° celsius in summer to -20 in winter. I use 80w90 as LR says it should be

Originally Posted by Nielsc

Thing is, it didn't do al this before the locker was fitted.

Read the manual above it explains why this it is so
I have 1 Land Rover with a Detroit and it does have these characteristics that said your shunting issue does sound excessive.

When these unlock (with a bang) or drive transfers from one wheel to the other in a corner, all of the wear in your drive train will transfer between, driving the wheels and being driven by the wheels (if this makes sense) hence the kangaroo hopping. I can make mine do this continuously for as long as I want. The severity depends on the amount of wear in your drive train (mine is stuffed again). If you have a sudden increase to the problem, you may have done damage or accelerated wear somewhere - uni joints, centre diff shims, front CV, diff pinion bearings, loose drive flanges, etc, etc, etc. I find auto lockers cause accelerated wear to driveline components because of the sudden unloading during cornering or even drive transfer between sides across diagonal ditches unloading from wheel to wheel etc. Manuals are significantly worse than auto's because the engine acts as a solid stop, where as the torque converter in an auto will slip and absorb the energy transfer. Not a real technical explanation, but I hope it helps to explain what happens.

Rick

Originally Posted by Nielsc

Is yours also fitted with a detroit locker ?
Thing is, it didn't do al this before the locker was fitted.

I have checked before with the manual, but will do again.
Weather here is like 30° celsius in summer to -20 in winter. I use 80w90 as LR says it should be

Yes, I have a Detroit locker in my 110's Salisbury diff. I use ~85w140 by memory but it is hotter all year around here. I don't think oil viscosity will have anything to do with this problem apart from the obvious wear prevention.

Originally Posted by isuzutoo-eh

I found similar symptoms happened to mine when I had too much play in the gear train. Check the splines on the drive flanges and the inner end of the axles too. The crush tube for the pinion may not be quite right, unlikely but give it a wiggle by hand anyway-check anywhere that play could be-slip joint in the tailshaft too. My problem was the shims in the centre diff were worn, one had disintegrated completey, once it was reshimmed all the banging and kangaroo hopping went away instantly.

Shouldn't the diff be howling alot if it isn't shimmed up correctly anymore ?


Well, i know the front diff has some play in it.
Front and rear shafts / flanges are OK.
Transfercase some play but not too much.
But not more play than before I fitted the locker.

I knew salisbury axles are known to have some play in it, even being new. Mine has alot of play but don't know if it is as it should be, or if it is too much.
I also know the detroit manual states there is increased play in the drivetrain, but when driving straight it is not that bad and I can live with it.
Only when cornering, and driving away at T- junctions and such it's a pig to drive !

I'd like to check it out, but I heard salisburys are pain to set up correctly.
Does anyone have a good manual or a link for setting up salisbury diffs ?
I might check it out, but if I am sure the detroit is the major reason, I might swap it for a truetrac or something.

Niels

No, the centre diff didn't change sound at all, it just had a lot more back lash. The other symptom was chunky transfer oil
As bushrover said, it'll be an accumulation of mechanical play, it is usually easiest to treat the worst offender than all the little offenders. Do you have upgraded drive flanges or axles? Perhaps swapping front and rear drive flanges, if the fronts aren't too worn, could reduce the play enough to make a difference (if so, replace the ex-rear drive flanges!).
A Truetrac will eliminate the kangaroo hopping and banging and is gentler on the drive train anyway, but if you are going to spend that much for what is essentially reduced off road performance, you'd be better off spending the same amount to reduce the play you have and then you'll be happy with the Detroit No-spin.
It costs more to install a Truetrac than it does a Detroit no-spin!