Brief history...I bought my son a 1999 Toyota Landcruiser with 125,000 miles. We put an OME lift kit on and the boots and the original CV axles soon ruptured. After checking around with some of the offroad shops mentioned on this board, I decided to go to Pep Boys and have them replace the axles, hubs and bearings. Reason to go to PB was for the warranty coverage. However, now when my LC gets above 45 mph (to about 70 mph) during acceleration, there is extreme vibration. When I take my foot off the accelerator, there is no vibration. I've taken it back to them twice and they first told me it was the oversized tires (not true because it didn't happen before the axles were replaced). Can you please help me with what the problem could be and what do I need to do to fix it?