96 avalon with abs and 147,000 miles. replaced the drivers side transaxle using remanufactured part from autozone, the trans/diff seal was replaced with toyota part. the transaxle seems fine, but now the diff is leaking and the trans has slipped a couple of times. (the trans had never slipped before this repair.
any advice is appreciated. used haines/haynes manual and followed instructions exactly. what's the trick.