What Audi, Brendan? A 5k takes about 1/4 to 1/2 hr per side in the front, slightly more for the rears. A 4k takes about 3/4 hr/side, front, 1/2 hr/side rear. I'm not sure on the 80/90 cars. If it's high mileage, ck the strut bearings. If its really rusty, add time. Maybe you look like a gold mine to this guy. Just my $.02, if he's fast, he could be making about $200/hr. John