8.25 solid pinion spacer.

pinion bearing solid spacer Ratech 4114 is correct for the 8 .25 rear axle --- why you have a crush collar for a 489 case 8-3/4 rear axle in your 8.25 is the mystery ,obviously someone screwed up in the past--- you should have had a simple collar of about .440 - .450 crushed length