On my LBZ I used a Street Scene, bought form Ebay for like 130ish.
Gotta unload the rear suspension to pull the overloads, IE jack the truck by the pupkin till wheels are about a foot off the ground, place jackstands under the frame just in front of the fuel tank area and lower the truck donw till the tires touch the ground. Loosen lugnuts jack the rear end up a bit and pull the tires. Then let the jack down all the way and let the rear end sag under its own weight. Support the diff by the jack and give it a pump or two so it's somewhat neutral on the springs. I did each side seperately so I didnt have a rear end going bananas all over the place. The centering bolt in the middle of the speing pack is the most PITA more than anything, gotta holt he bottom of the and loosen the nut so it "seperates" the leafs. I pull all my leafs with the pack still bolted to the truck, but it could be easier if you pull the eye bolts and shackle and do it on the ground. I can knock one side out by my skinny ass self in about 25 mins. Its not hard, just time consuming. Overloads are 25 lbs a piece, and will show you whos boss if you dont hold em right :rofl: