Tucson 20 die 4x4 2005 car has an oil leak from the oil seals between the gear box and the 4x4 exchange box I have replaced the oil seals twice each time it stops the leak but only for a few days then

Hi Dolores ! by replacing the axle shaft have you changed also the oil seal on the gear box or not? If not surely is the old oil seal and is leaking.

change it to a borg and beck unit i think the part is 2216 cost around £100 [2016] ebay big job around 6 hours also change the flywheel gasket cost around £20 change the seals on the transfer box too and change all fluid [gear oil/transfer oil ' ] i used all synthetic

If it is the front seal in the gear box then the box has to come out. The seal is in the extension housing that the clutch throw out bearing runs on and the seal can be replaced by removing that housing . However mostly if that seal leaks then the front bearing on the clutch shaft may be failing allowing the shaft to move and that is why the seal leaks. If the front of the box is dry then the oil leak may be the rear main seal of the engine so it is best to check both arrears as the oil leaks from the same point in the bell housing

Check the sump gasket at the rear of the sump tension sump bolts. Check that the rocker cover gasket is not leaking down the back of the engine and giving the appearance of a sump leak. Rear crank seal would be another point of leak and front input shaft (clutch shaft) seal leaking. Check the engine oil level and correct if necessary and check gear box oil level and correct if necessary. If you have an auto the oil will be pinkish and indicates a torque converter to gear box seal leaking.. Either of the shaft seals will require the box removal for repair.

Normally there is a seal of sorts here (it may be a felt seal or a rubber flap) but I find that if there is a problem here I check firstly the oil level in the gear box and the viscosity of the oil in the box Remove the filler plug (plug in the side of the box ) and drain until oil is level with the bottom of the threads. Best replace oil with a known viscosity oil for you gear box.

Check the oil filter. The old gasket might be stuck on the engine (two gaskets stuck together), or the new gasket might be defective, misaligned or missing.

First thing to check is oil-level in the gearbox. If far below the filler hole - refill and look for oil leaks around seals and in clutch housing.

If oil level is ok - it might need changing or when serviced recently, it might have been filled with the wrong oil.

Somewhere on the side of the gearbox there's a bolt with a seal ring. Usually this is the filler hole. Oil level check is simple, stick a finger in downwards. Should feel the oil level.

Gear boxes need the right oil viscosity and are quite sensitive - meaning changing gears gets difficult specially when cold.

what box?? gear box are described as tranny, differential and steering box. if steering is leaking check the seals at input shaft or bottom replacement is nessary but can be done pretty easy and cheap too. if leaking from hose then you looking as a hydraulic hose like $80 or so..

sorry but its going to be a big job. you need to remove the gearbox to open up and get to the seals. you could try and use an additive in the gear box, its like oil seal for engine you can get it for engines gear boxes and difs and power steering. it sometimes goes by seek and seal, in older vehicles its quite good. you will need to replace the oil it will need to be done twice to clean it all out so it can get a good seal.. i.e change oil run engine get the gearbox to move for 20 min then change the oil as its warm not hot so let it cool down for 10-20 min then drain. put the seek and seal in and top up with oil and run as normal, check after a few days to see if its worked. usual does.

Oil seal must be replaced.