EXL-160 are 45/65/80/100 and always have been. EXL-165 are 45/65/85/105 and always have been (well at least since they introduced that set). And EXL-170 are 50/70/85/105 and always have been.
D'Addario's light gauge bass strings (nickel XL series, stainless XLS, Half-Rounds HR, SHR, and NHR series) have always been (well, at least since around 1976 when I first got into retail music) 45/65/80/100. The medium gauges have always been 50/70/85/105. Their standard is a 0.020 increment between the G and D, and between the E and A with a 0.015 between the D and A. The set you're used to using is the light-top/heavy-bottom set, EXL-165 that's kind of new- they only introduced it around 1991 or so. It's 45/65/85/105.
Order by set number, not names. That'll avoid a LOT of confusion and problems.
John