The quick way: remove the trailing arms & cut the rubber out of the forward end till it's slightly below the level of the collar that ends the tube of the trailing arm. go to the hardware store & get the biggest thickest washers they sell. At lowes it was 1 1/16th and about an 8th of an inch thick. you'll need two, get a few in case you f*#k one up.
Cut the two washers in half. grind the center hole open till the two halves will come together around The end link pin. In a perfect world the outside diameter will be slightly less than the outside of the collar but close will do.
Weld them to the link & the housing. the remaining rubber inside will hold the link in the correct position so its a no brainer, you don't remove the pivot bolt either. just weld the pin to the collar using the washers as large spacers, the bolt keeps things lined up & triangulated for strength.
bam your done, grind the welds pretty paint them up & put em back.
You'll need an alignment with the rear toe set to zero OE is -3 I think & you will be scrubbing tires at that setting with this mod.
Mine are fully welded with the bolt & all rubber/plastic removed but that gets complicated maintaining all the correct geometry & I wouldn't have a clue how to impart how to do it. If I ever have any free time I could to photo step by step but honestly, the method above works just fine.