I've had it up on the ramps at work and everything seems fine. We havent changed the gearbox oil. But its off to a starlet specialist in the next couple of weeks for a good once over and new brakes, rad, mani n a few tweaks. Im going to get him to check it out and see what he thinks. Ive had a few knowledgable guys drive it and they all seem to think its a diff problem.