Just a quick Q - I'm currently sat looking at trolley jacks on Amazon and I'm wondering how much lift height a jack needs to be able to lift the wheels of a 2CV clear of the ground. Does anyone on here know?

Use the Citroen jack and measure, the wheels droop but a large amount.

Can't say I know!
I always add a thick piece of wood (2") to the trolley jack as well.

Thanks, chaps. I'll have another look on Amazon and make a decision. The first job it'll undertake is to lift the Morris clean off the ground, I also need to buy a set of 4 axle stands, so all four wheels have air beneath them, then adjust each one of the cable-operated brakes. After 500+miles they're needing it.

The required lift height can be achieved with a block of wood, as mentioned. What you cant easily modify is the stability/sturdiness of the jack. Also, how LOW it goes can be important for some cars. (like hydraulic Citroëns)

I would avoid those small, narrow flimsy cheapo jacks at all cost. Useless. Or in best case just dangerous.

Go for a wide, sturdy one, that has a low minimum lifting height. Often, the maximum lifting height is sufficient as long as its not of the smallest ones.

I have this one: https://www.tornevalley.co.uk/jacks-stands/1181-5-tonne-aluminium-racing-jack.html

(Link just to show the jack. I dont know the company and are not suggesting buying from it. I bought mine in Norway.)

But really happy with the jack. Solid, lightweight, no issues for 10 years.
Got a long strong aluminium handle so to easily operate the jack even if it's under the car! Lower part fitted with foam to protect the paintwork of the car. Pump action works even if the handle is just moved a little bit up and down, as it would if the whole jack is way under the car. I often place it under the car with a wooden beam across the chassis, where the axle bolts are, and the jack in the middle. The jack easily lifts the front or back end of the 2CV with both wheels off the ground.
And because it doesnt have two separate wheels in the front, but insted that smart big roll thing in stead, it can be placed close to things, like the front wheel of a car if you just wanna lift the wheel a little by placing the jack on the suspension arm. (Make sure the suspension arm can handle it, like on the 2CV, DS and CX.

Just some tips on what to consider

From the 2cv workshop manual
http://guillon2cv.free.fr/documents/dic ... che52.html

Wow, seems my piece of wood is an original Citroen tool

I do the piece of wood too. I think my trolley jack is a two ton one though, its quite big. (Was a present, and my other cars are way heavier than the Deuche!)