blasterman87
New Member
i have 2 trannys and both are s1's, the one was sold to me as a jdm tranny and it has lsd(aftermarket im assuming) and i want to get the shorter geared jdm one rebuilt so whats the diffrence between the jdm/usdm? i know the jdm is shorter geared but how can i be sure its a jdm tranny?