bodstruck wrote:

That is some setup. I am jealous. I would say not overkill for me but certainly overkill for my wallet

bodstruck wrote:

I have a 10 spline diff on the front of my 110 (1991 200tdi, but nothing else is original so no reason this should be). Narrow radius arms (cranked an with good bushes), vented disks and larger calipers.

The pinion bearing needs replacing. It is tightened up a little to remove some of the play but the bearing is rough as anything while turning.
There is also a fair bit of play between the wheels and the prop. You can turn the wheel a fair bit before the prop starts to tun so either drive flanges or shafts (or both) are worn.

What are thoughts on options for upgrading? I could replace like for like but I think I would like to do away with the 2 pin, 10 spline diff and now seems like a good time to do it.

Can I keep the axle case, swivels, brakes etc and just fit 24 spline internals? Or would I need to consider stub axles and/or any other parts?

I was considering also potentially an ATB or LSD. The car is probably used 50/50 on and off road. I am not sure I need one but if I am spending on the axle it could be worth considering now rather than later.

Thoughts and advice would be welcome. Thank you.

Firstly an ATB is an LSD...

Really depends what you use the vehicle for and your entire setup. Plus what your end goals are.

You say you have cranked radius arms?? Do you mean caster corrected rather than cranked? Are you running a lift? And what sort of bushes.

Generally the front suspension has very limited travel and it isn't the shock that limits the travel. If you have caster corrected arms, they tend to make the pinion angle worse on the prop.

And there will always be some slack in the drivetrain, yours might be excess, hard to tell from a forum post. But doesn't sound all that different to what you'd find on most vehicles.

As for axle upgrades. Do you need a stronger axle? Have you broken a standard one? What size tyres and what type of off roading are you doing?

You can switch to 24 spline shafts, but you'll need some extra bits. This would only make sense if you changing the diff centre. But as you've probably seen, it ain't cheap.

A 4 pin centre will be stronger and provide the same performance. stock 24 spline vs 10 spline shafts are close enough strength wise, that it is not really an upgrade. Ashcroft shafts obviously a lot stronger. But again you'll pay to get them.

It might be worth pricing up getting a latter axle, but remember you may need to think about brakes and arms too.

ATB is a brilliant upgrade for enhanced ability.