J30 VLSD Mounts (putting in an S13)

[upSLIDEdown]

Ok, so my J30 VLSD has poly front mounts, but when I got the diff, it didn't come with the big plate washers for the bottom. Ended up with a pretty major issue, but the diff is out now and I see what's wrong. I need some sort of big plate washer for the bottom. The poly bushing goes in from the top, but when inserted, the bottom of the bushing (along with the inner metal sleeve) protrudes from the bottom of the diff flange by about 1/8". That's not normal...correct? The metal sleeve will bottom out again the bottom of the car, and the washer I need will tighten again the bottom of the sleeve. There will then be about 1/8" play in the diff mounts. Right? Someone give me some insight here. I'm kinda confused. I assume the big washer I need should catch on that metal sleeve, and not be bigger than the sleeve so the sleeve goes through the center of the washer, right? HELP?