Thread: Rebuilt LT77 now whining/squeaking and horrible overrun noise

You might have a dry spigot bush



although I suspect that you have some bearings that have too much wear and are allowing the input shaft and lay shaft to move away from each other and aggravating the situation by allowing a small amount of movement in the input shaft.

Could be the clutch release bearing?

Either way it sounds like you will have to drop the gearbox and possibly service it while you have it out.

I'd wait for an opinion from a real mechanic before committing to any expenditure on a repair.

I dont think that is from the gearbox.

Obviously its difficult from a short vid, but i would be checking Ujoints first.

cheers

I agree with UJs but will add exhaust manifold gasket,turbo gaskets if any.
Regards Philip A

I don't trust recorded noises but my guess is a ready-to-explode universal joint. Do not drive it anywhere without checking all the u-joints for slop and rust dust from around the cups.

Thank you slug_burner, strangy, PhilipA and bee_utey for all of your replies . I know it can be pretty difficult hearing anything from the microphone of a point and shoot camera but thanks for giving it a shot.

I live a two and a half hour drive from the nearest specialist Land Rover shop (a pain to get to) and you've all helped me quite a bit in focusing in on where I should start.

I figure I'll start with the less expensive parts and repairs first and then, if needed, work up to the gearbox and gaskets.

The UJ's are looking a bit old and I have been noticing that when greasing them it's almost impossible to get any grease into them at all. And yes, there is a lot of rust dust. Thankfully, there is no slop in the driveline at all. Nevertheless, the Landy can sit in the driveway for a week while she awaits parts.

I've just placed an order for all new UJ's, as well as wheel bearings (never been done) and a new CV (to accompany another new one I replaced a couple months ago on the other side)...hopefully arriving by the end of this week. I know no one has suggested bearings or CV's but I thought I'm going to be under the car anyways, might as well get them done.

Hopefully, this will take care of the noise and I won't have to look further at work on the gearbox or clutch.

Thank you again.