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Universal Joint Assembly How Does It Work

Rice_banger
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Rice_banger Contributor

Rice_banger

Posted
Posted

was wondering would anyone be able to please tell me how to remove my propeller shaft to be able to change the U joint , im going to tackle this next weekend due to 4 days i got

im scared of going under the car due to geting these pics i used 2 stock jacks and 1 bent in half , so i prey i can scab some decent stands etc

the uni joint im geting for $20 , trans fluid how much would i need to top up due to ive heard some will poor out, do i need to replace any gaskets ? and last but not least im living on a preyer my 2 hands and a vice and hammer and neddle noise plyers and shit loads of WD40 can remove the uni

lowerassembvlynf2.th.jpg

assemblyow1.th.jpg

didnt get to take photos of the bolts but i noticed the propeller shaft goes thru some where then on the other side theres anther prop shaft with bolts attatching to the one where my uni is any one please be able to give a few words ?

Duncan Grand Master

Duncan

Posted
Posted

yeah you will loose some gearbox oil but not all when you remove the tailshaft. I'm sure 1l would be enough to refill it.

Not sure about your uni - on later cars r32+ it is welded on at both sides and needs to be cut off and welded back on?

Rice_banger Contributor

Rice_banger

Posted
  • Author
Posted

boltsarethesetheonestorrv8.th.jpg

sorry for the blurry / undetailed pic

but this is on the other prop shaft which connects to the prop shaft i want to remove so would i have to remove tose screws then remove both not to sure

V8skylineMAN Grand Master

V8skylineMAN

Posted
Posted

you will need a hammer, two flat blade screwdrivers, a socket the same size as then end of the uni joint.

you need to take the whole shaft out, both halves.

the two screwdrivers are used to remove the C clip that is on each leg of the u-joint. hold one on each side of the C clip and hit one of them with the hammer. its awkward, but it can be done.

now you sit the socket one the ground and the uni joint on top of it, taking care to align the socket with the cap of the u-joint

hit the yoke between the welded area and the cap. the caps should start to come loose.

getting them back together is a little more difficult. first you take off two opposite caps, put the new u-joint into the yoke then place the caps back on. tap them gently with the hammer. they will go back into place. fiddly job but this is how i do it, and have done many, many times. remember to put the c clips on. do NOT leave them out.

cheers

Jason

Rice_banger Contributor

Rice_banger

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Posted

cheers for that everyone

i dont know why but im scared of removing the shafts dont know why , but is it as easy as just removing tose bolts and then slamming it into gear and turning the rear wheels so they move to get to the others?

blind_elk Grand Master

blind_elk

Posted
Posted
  Rice_banger said:
cheers for that everyone

i dont know why but im scared of removing the shafts dont know why , but is it as easy as just removing tose bolts and then slamming it into gear and turning the rear wheels so they move to get to the others?

Putting it in gear will actually prevent the rear wheels and tailshaft turning. Use the handbrake to stop the tailshaft turning while undoing the flange bolts.
Rice_banger Contributor

Rice_banger

Posted
  • Author
Posted

my hand brake doesn't work dam it

so putting it into gear will stop the tail shaft etc turning?

asking due to need can only reach 2 bolts in 1 position so my plan was to make it turn so i can get access to the other 2

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