Anyone know of trolley jack that will lift from about 90mm? None of my existing ones go that low.

Andy, Bluepoint (your friendly Snap-On man), 2 ton, ground to top of rubber cup, 70mm. About £100.....
Yup I got one....
HTH Fozzie

Thanks Fossie

just get a couple of pieces of wood, approx. 100mm thick, drive onto that and then use the not so low trolley jack.

Cheap.