tranny id
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Junior Member
Joined: Sep 2008
Posts: 10
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From: Riverside CA
tranny id
im tryin to see if my Tranny has LSD without abusing it by buring out. it has 45D stammped on the tranny housing, and another ? is there anyway to id a tranny by the serial number on there? 
Senior Member
Joined: Oct 2004
Posts: 4,270
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From: Texas
OEM LSD tranny's will have "LSD" stamped on the transmission case in black ink, somewhere near the top. Sometimes this ink gets rubbed off though.
Carfax the VIN on your transmission case, if it comes back as an ITR tranny then assuming it hasn't been removed, you have an LSD.
Support the car on jack stands and turn one wheel counter clockwise. If the other drive wheel turns in the same direction, you have an LSD. If the other wheel turns in the opposite direction, you do NOT have an LSD.
If all else fails, remove the axle and halfshaft from the transmission. If you can see through, you have an LSD. If you see anything obstructing you from seeing completely through the transmission, you do NOT have an LSD.
Carfax the VIN on your transmission case, if it comes back as an ITR tranny then assuming it hasn't been removed, you have an LSD.
Support the car on jack stands and turn one wheel counter clockwise. If the other drive wheel turns in the same direction, you have an LSD. If the other wheel turns in the opposite direction, you do NOT have an LSD.
If all else fails, remove the axle and halfshaft from the transmission. If you can see through, you have an LSD. If you see anything obstructing you from seeing completely through the transmission, you do NOT have an LSD.