Just finished my SSR 130-54 rear SumoSprings install. It took me 1.5 hours, because I was in an RV park with a small bottle jack and a stand.
This is the drivers side with weight on axle. Always do this side first, because it has a longer bolt to accommodate securing the brake line bracket.
Then do the the passenger side, which has the exhaust to work around.
The last picture shows the passenger side with weight on the axle.