Pulled a POSI rear out of a 72 Ninety Eight about 5 years ago with 72,000 miles on it. Complete Drum to Drum. No issues with it when pulled. Should fit years 71-76 full size 88's and 98's. I believe the gearing was 2:93. I can confirm that if necessary. Its sitting in dry storage in Frederick Maryland. Asking $200 for it.