s1 tranny

is the s1 tranny a jdm tranny or is it usdm i have came across a great deal but it has a 3rd gear grind i was wondering if i would be able to fix that or not before i bought it thanks

both jdm and usdm…some of the 90-91 tegs had s1 trans and the other 90-91 had y1 trans. the jdm 90-93 with the xsi motor also had the s1 trans but that one is super low geared. can anyone confirm that? i think I’m right…just wanna make sure I’m not giving false info