User Schwingshot over on TDS has been wondering what changes have been made to the angle drive (What changes were made to the newer style angle Drive | Polaris Slingshot Forum).
Here's what I found looking at PartShark's listings -
Based on the parts listings from PartShark, here are the PNs by year -
2015 & 2016 angle-drive pn = 1333003
2017 built to 02/03/17 = 1333618
2017 built from 02/03/17 = 1333909
2018 =1333909
Replacement angle drives for all years are now listed as pn 1333909.
Assuming there is a visible difference in the casting for the new angle drive design (pn 1333909), if some owners of 2018 or late 2017 Slingshots (built after 02/03/17) post some pictures of their angle drive units, we may be able to see any changes. Since most failed angle drive units seem to have experienced failures where the driveshaft connects to the angle drive and across the front of the angle drive towards the drive pulley, pics of those areas may be useful.
Please post any pics here and/or PM them to me and I'll try to get them posted on TDS.