1974hellarust Posted January 14, 2016 Report Share Posted January 14, 2016 I am having rear u joint problems. I think my 1974 Datsun 620 has a bad u joking hole. If u have a rear drive shaft or an option that is fairly inexpencive. please help! Quote Link to comment
hobospyder Posted January 14, 2016 Report Share Posted January 14, 2016 Have you checked your carrier bearing? I would look at that as well. Also location would help and you're probably going to get directed to the classified's since buying and selling is prohibited in open forum Quote Link to comment
1974hellarust Posted January 14, 2016 Author Report Share Posted January 14, 2016 Awesome! Thank you...yes new carrier bearing and it failed on the diff end. Quote Link to comment
hobospyder Posted January 14, 2016 Report Share Posted January 14, 2016 Your location. Sorry I use mobile version which doesn't tell much. And I'm probably one of the five people who prefer it Quote Link to comment
1974hellarust Posted January 14, 2016 Author Report Share Posted January 14, 2016 Fresno, ca Quote Link to comment
hobospyder Posted January 14, 2016 Report Share Posted January 14, 2016 Need king rat in here, is it possible to just replace the ujoint? Maybe call local Nissan dealership and see if you can or if they have in stock even. Would be a pain to ship an entire driveline just for the ujoint Quote Link to comment
datzenmike Posted January 14, 2016 Report Share Posted January 14, 2016 I am having rear u joint problems. I think my 1974 Datsun 620 has a bad u joking hole. If u have a rear drive shaft or an option that is fairly inexpencive. please help! Awesome! Thank you...yes new carrier bearing and it failed on the diff end. Not very clear at all what you mean. What's a 'u joking hole' ? The carrier bearing is in the middle. Carrier bearing never go bad...well two have in all of Ratsun in 8+ years. People change them when not needed. The 620 is a two part driveshaft with three U joints. One at transmission, one at the differential and one in the middle. Two questions.... 1/ Can you see damage that is obvious? if so, where is it? 2/ If you can't tell what the problem is, describe what it is doing? Quote Link to comment
]2eDeYe Posted January 15, 2016 Report Share Posted January 15, 2016 My brand new carrier bearing went bad. I think when lowering the 620 it pushes the driveshaft forward putting a tearing load on the rubber ring around the bearing. I plan to build a one piece shaft to eliminate the issue. 1 Quote Link to comment
datzenmike Posted January 16, 2016 Report Share Posted January 16, 2016 The rubber ring or insulator rides on the outside of the bearing which is stationary and it allows the drive shaft to spin inside it. There is hardly any load on it. The driveshaft is well balanced and it only hold it's weight and supports it. The front driveshaft can move forward on it's transmission spline. Quote Link to comment
datsunaholic Posted January 16, 2016 Report Share Posted January 16, 2016 I've never had a carrier bearing go bad. I've had plenty of the carrier bearing rubber insulators go bad though. The one on my now departed lifted ex 4X4 '76 longbed was non existent. At any speed over 30 MPH it quit banging around and just hovered in the hoop, no vibration at all. Not quite optimal though. 1 Quote Link to comment
1974hellarust Posted January 19, 2016 Author Report Share Posted January 19, 2016 Thanks for the suggestions and help. Oh and yes I misspelled u-joint. I am going to a straight shaft but I'm not sure if it is going to fit since my truck is so low. And ideas or suggestions are greatly appreciated. Oh and ya it's the rubber that's getting messed up. Quote Link to comment
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.