hi all , could someone tell me how to fix a leaking diff in a ke70 please, seems to be leaking from the front. thank you , jack.

Replace the pinion seal.

Replace the pinion seal.

thanks B.L.Z.BUB, i'll set about replacing the pinion seal, wish me luck ha ha ha, i'll need lots of luck. thanks again . i'll let you know how it all went. thanks....

Read up about it before you lift a spanner to take it apart.

 

The bearing preload is set on the nut that holds the pinion in, so how much you do it up is important. If you just do it up tight you will ruin the preload and desroy the bearings.

 

Before you take it apart you will need to measure how easily the pinion turns with no driveshaft or load on, and then after you fit the seal you do the nut up to get the same preload. I'm halfway through doing it, but of course I pulled it apart before measuring the preload so will measure it on my spare diff.

 

Education is expensive...

thank you altezzaclub i'll study the job more closely before I start.

yeah doing what you suggest is not easy.

 

Some say you can get away with undoing the front nut, pulling off the flange replacing the seal, and putting the nut back on again exactly how it was.

 

Others say you should go through the entire diff setup procedure to ensure the diff is setup correctly. (backlash, teeth contact area etc)

thank you ke70dave , I like to do things the right way . so it seems like I have a bit of research to do. thanks again...