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| driveshaft. ujoint, B&T ? https://www.slantsix.org/forum/viewtopic.php?t=18746 |
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| Author: | 64'4$peed [ Sun Jul 23, 2006 11:12 am ] |
| Post subject: | driveshaft. ujoint, B&T ? |
I've never serviced a Ball and trunion type joint on a driveshaft. do they ware out like U joints? are they hard to replace and get parts for? |
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| Author: | SlantSixDan [ Sun Jul 23, 2006 11:46 am ] |
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They are U-joints, just a different type than the cross-and-roller type you're used to seeing. They can and do wear out, just like other U-joints. The boot needs to be inspected periodically; if it's torn, replace it. If you get a shudder on acceleration (particularly as you cross up through 10-20-30 mph accelerating from a stop) that can indicate a worn B&T front U-joint. Complete rebuild packages and new boots are available from Andy Bernbaum (his catalogue goes up to '62, but the A-body B&T U-joints and parts are the same through 1965, so the items listed for 1960-'62 Valiant and Lancer are the ones to pick.) There is also a conversion process that bolts a splined shaft to the output flange of the transmission and shortens and puts a new nose on your driveshaft, with a cross-and-roller U-joint and slipyoke. This is worth considering if the B&T joint is completely trashed and would require a new housing to refurbish it, or if for some other reason you will require a custom-made driveshaft. But it is usually more economical to fix the B&T joint if it requires minor or moderate repair. When in good repair, B&T joints work well. |
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| Author: | 64'4$peed [ Sun Jul 23, 2006 1:04 pm ] |
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thanks for the info dan. I dont have any shuddering. I just want to replace any questionable week spots before they becaome a problem. I'm sure they've never been changed or serviced |
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| Author: | SlantSixDan [ Sun Jul 23, 2006 1:14 pm ] |
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Definitely no inherently weak spot here. Check the boot; if it's torn, regrease the joint and install a new boot and you'll be all set. |
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| Author: | 65 dartman [ Sun Jul 23, 2006 6:15 pm ] |
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Quote: Definitely no inherently weak spot here.
Definitely not as the ball & trunnion was used behind big blocks and hemi's in 64/65
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| Author: | 64'4$peed [ Sun Jul 23, 2006 6:45 pm ] |
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what about the rear u joint? I'm trying to put together a list of things I should change when I tear apart the rear suspension. rear axle is definetly getting a pinion seal. and then I'll inspect the gears. not making any noise so I'll leave the bearings alone. trying to plan ahead |
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| Author: | sixsignet [ Thu Jul 27, 2006 1:54 pm ] |
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It's just a standard U-joint. The first place I called had it in stock. |
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