I crossed my fingers and hit "buy now" on these: https://www.ebay.com/itm/KYB-Front-...677741?hash=item441034e3ad:g:cpMAAOSwM5RZkFRu https://www.ebay.com/itm/KYB-Front-...016143&hash=item5d77c7eaac:g:ohcAAOSwLgtZkFRy They were an exact match for my 1991 (February build) S83P. BTW, I ordered on May 8, rec'd May 13--not bad from the UK to the US! I hope this helps someone else. JMM
Yep, KYB 633118, and 633117, are direct bolt on for the S81P, and S83P, I’ve read that they will fit the S110P, with minor modifications.
Mounted a set on my former S83P with a set of higher 250 ibs Springs Excellent replacement , I think I had to mount them by part number on opposite sides as the mounting tabs for the brake lines from the disc and drum front brakes are front of center and the other is back from center