OK so here’s the deal with these guys:
USDM received 4 motors in these over the KN13 run from 87 to 90.
You are looking at the e16i here indicating NX trim. (87 or 88),
The SE trim received the ca16de in 87, and the ca18de in 88 and 89.
The later NX trim received the GA16E. (89/90).
Swapping in AWD has been done by a…