I'm looking at a 993 with options 220 (locking differential), 224 (ABD) and 241 (short shift) among others I more fully understand (like a sunroof). I read about ABD and it seem to work with the locking differential, but is this LD the same as what is usually called "limited slip"? Also, I assume the short shift is about a 30% reduction in lever throw?

It also has option 718 which is "S program VIN change". Anyone know what this refers to?

 

LD is same as "limited slip"

ABD is traction control; works off of ABS to limit rear wheel slip undero low traction low speed conditions.

Can't find ANY info on your 718 code;isn't in my parts microfiche list of optional codes. Send PCNA an E-mail or talk to a dealer