Is there a way/has sombody done a swap from the 2 part seat belt in an EA82 with the automatic door and lap belt to the more standard/conventional single peice shoulder belt found in cars today?

XT6 guys have done it, probably some info at subaruxt.com and maybe here? might try a search.

You need the belts and a- and b- pillar trim and you just swap it all over. 86-89 cars all had normal seat belts, the 90-94's US models had stranglers.

Do some easy junkyard shopping.

 

The computer for the auto belts is behind the drivers rear interior trim in the trunk/wagon area above and behind the wheel well if you want to unplug it to stop the light flashing after you swap the belts.