Hi,
I have a 1994 Defender 90 and a few days back I heard grinding, clunking, knocking noises coming from the rear of the truck. My guess is it's the rear axle maybe the diff or else the transfer box. The noises are not constant but quite regular. The grinding noise doesnt happen that often but the clunking and knocking noises are quite regular. I don't know what the problem is but need to get it sorted.
The noises happen when driving at any speed. The truck feels fine to drive with no notable decrease in power, speed, acceleratiion or handling. The gearbox feels fine with no problems. I havn't tryed to put it into low box or lock the diff since the noises happened as I fear doing more damage. There is some oil leaking from where the propshaft meets the rear axle.
The brakes have also had problems since the noises began. Generally, as you know, when you press the brake pedal it is firm. However, around the same time the noises began the brake pedal has not been firm and the pedal almost hits the floor and on occasion has. They are obviously not as effective but have not completely failed. when I'm driving and have to press the brake pedal sometimes it's fine and feels as normal and then a few minutes later you press the brakes and the pedal hits the floor. Don't know what problem is or whether it has anything to do with the noises I'm hearing.
Thanks for any help you can offer. If anyone has any questions please let me know. Sorry if the description is a bit vague but as I dont know what the problem is I don't know whats relevant and whats not.
Thanks again.
Andrew