Thread: ARB locker falling apart?

Pull it out of the housing first, then ask questions, dont continue to drive it

Yeah not keen to drive it as is. I'm going to drop the tailshaft and pull the axles now. Then pull the diff out tomorrow afternoon. What I know about diffs could be written on a pin head.

watching with interest.

I have brocken 2 rear lockers in my discoverys. Same failure. Side plate - crown wheel side bearing carrier. First one broke after axle failure. Second unknown.....ARB was very difficult to deal with but noise on a Sat morning in large show room soon let to progression. I only paid for new seals etc.
Makes a inconsisten clunk depending load as axle carries diff centre load. Can usually feel a difference in rotation of pinion as turned.

You would have to ask the question as to weather the backlash and preload were correcrly set at the time of instalation
hard to do once the drama has happened

Originally Posted by Utemad

Yeah not keen to drive it as is. I'm going to drop the tailshaft and pull the axles now. Then pull the diff out tomorrow afternoon. What I know about diffs could be written on a pin head.

Yep, need to pull it out and post some pics, I'll take you through it

But asking possabilitys, well...........collapsed pinion bearing, carrier bearing, loose bearings, crown wheel loose, carrier bearing caps loose, cross pin ****ed, blah blah, you see the point

Well I have it up on axle stands with the wheels and drive shaft off.

I cannot replicate the big thump but I'm not putting anything like the power the engine would be putting through it.

There is not much play in the diff that I can tell. If you measure around the circle that is the mud cover in relation to the diff housing I would say that there is about 1-2mm movement before the diff gears engage. Would think that is normal.

I'll go and pull the axles and drive it to work on the front and see if it thumps tomorrow. If it does it will rule out the rear diff if nothing else.

Originally Posted by rovercare

Yep, need to pull it out and post some pics, I'll take you through it

But asking possabilitys, well...........collapsed pinion bearing, carrier bearing, loose bearings, crown wheel loose, carrier bearing caps loose, cross pin ****ed, blah blah, you see the point

I appreciate the help. I do know that the locker has lots of bits in it but I think it quite funny that given that it is a Land Rover that the one thing that fails is the non LR part that is meant to be tough