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Are you asking for the diag steps for these codes?
Do you know which modules stored the U codes?
Which engine, and auto or manual transmission?
Your models VSS sensor is on the rear of the transmission assuming yours is 2wd. You also have codes for the OSS sensor which is the same sensor. You mentioned replacing the ABS rear axle differential speed sensor. Have you replaced the transmission speed sensor?
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Is your vehicle 2wd or 4wd?
Did this issue occur immediate after the transmission replacement?
Have you done any sensor drive gear or sensor wiring diag as of yet?
Do you have a 4R70 or 4R100 transmission?