1. Never trust any jack alone, especially the ones that come with a vehicle. and double that if you are doing it roadside. Raising an awkward 1000 kilo object at one contact is inherently dangerous and few jacks that come with a car are adequate
a. Even when in your garage or driveway, raise the vehicle, lower it onto jackstands, Leave the jack in place, merely removing the jack arm. b. If roadside dealing with a flat, leave the removed wheel nearby under the car.
2. Jacking using any point on the chassis (or crosshead/crossmember) compresses the suspension. Jacking at the axle, drops the suspension. This is especially important at the rear when trying to access the U-bolts for their annual tightening.(necessary if you still using MMC u-bolts and saddle plates) Many trad owners keep jacking until they allow the shorter outbiard bolts damage the all-important chassis flange.
Lorne
P.S. BTW, my wife and I adore Northern Wales! One of our all-time favourite mogging areas worldwide.
