bottle jack are usually a small head and need a bit of space to fit under so if you have a flat you sometimes can't get the jack under if heavily loaded, but theyre nice and small and easy to store, trolley are the opposite, i have both.
I have a bottle jack in my bus, which came with it when I bought it, but I've never used it, I always use the trolley, but I guess the big advantage with the bottle jack is size.
I have a bottle jack in the van but also a trolley jack at home. A decent trolley jack seems to take up a lot of space in the van.
Trolley jack at home. Bottle jack in the van plus an assortment of pieces of wood. Never yet had to use the bottle jack, and wouldn't even think of using the original jack on 35 year old jacking points!
If you're looking for an emergency jack to change a wheel while out and about, then get a high-reach bottle jack (which is small and easy to store in your bus) and some flat thick timber to go beneath it (in case you need to use it on soft or uneven ground), but if you want a jack for home use, then deffo get a trolly jack as: it's far easier to use as the wheels let you position it anywhere under your bus without having to crawl around; it has a larger head, which spreads the load more and swivels; you can use it to take the engine out - which I'd never attempt with a bottle jack; it's more stable (but you should always use axle stands); generally speaking, they can lift your bus higher; and the wheels allow it to move slightly as you're jacking the bus up (so it always stays central beneath the load point) whereas a bottle jack may sometimes want to slip. Hope that's enough... I rest my case, M'lud!
As that's the one that failed. Van wasn't chocked and it rolled as rear was up. What an idiot, Chocks now on order!
If it was going to roll away on the stock jack it would on the others too. You should only jack it on level ground and if you're doing any work other than changing a wheel you should be on axle stands. When jacking you want to be chocked, in gear and handbrake on
