Identifying an axle

LSD check is easy, jack the wheels off the floor and turn one, the other wheel should turn in the same direction with an LSD and as avbove if there's no casting number we need a pic our crystal balls seem to have steamed up

hope these pics will help

Atlas axle probably from a capri as you were told

If you take the bearings out there should be numbers on them.

cortina didnt have a LSD so the betting is on the 2.8 capri

Capri, dffinatly, correct width (cortina Mk3/4/5 is wider) no ears on top of the diff (cortina had ears cast into the diff casing to attach the top arms to).
As to the bearings, been caught out a few times ordering bearing for an atlas as said check the numbers on the ones in there them order, i use this lot for bearings
www.bearingkits.co.uk/FORD-AXLE-and-DIFF-PARTS/FORD-ATLAS-AXLE-PARTS/C2-5-1-0.htm
One word of advice by all meens change the wheel bearing but don't mess with the diff, not even the pinion bearing seal, anything to do with the diff takes setting up "properly" IE dial gauge and engineers blue to set preload and backlash, mess with it and you will shorten the life of the diff (cue loads of peeps who've been there done it and never had a problem) BUT IME a few months down the line (usually after the "builder" has sold the vehical) there will be issues.
If you want to know how to set the diff up (it's not really that hard but needs doing properly) check out eric the car guy on you tube to see what it takes to make the diff last.

A picture of the end of the half shaft


Where the screwdriver is it looks like some kind of seal but its very thin and not sealing.

All the bearing kits I've seen seem to have taper bearings but this one is square.

The size is OD 67mm ID 30mm and 25mm wide

Half shaft number is 81EG4235BA.

Is there some where I can check what seals may be fitted etc I have done searches for exploded views but nothing came back clear enough to see.

Thanks in advance Rich

The seal should be on the bearing where it sits in the axle tube, not all aftermarket bearings have this, pull the halfshaft, clean it where the bearing sits in the axle and give it a smear of hylomar or similar, just check while the halfshaft is out that that the bearing hasn't been fitted the wrong way around

It's a few years since I replaced mine, iirc there is a shoulder the bearing sits against on the shaft then a retaining ring goes on after, you can change the wheel bearings one of 2 ways, you can cut the old bearings off slicing almost through with a 1mm cutting disk then knock it off, for refitting make a sturdy plate with a hole in the middle for the halfshaft to pass through, put it on top of the bearing then slide a scaffold pipe over the halfshaft against the face of the plate and hit the end driving the bearing on and repeating it with theretaining ring, or there's the easiest way take the halfshaft and new bearings to someone who has a press ask them nicely to do it and give them some cash for beer, i did it the first way as it was a Sunday afternoon

This is what I knocked up to drive the bearing on with