Originally posted by Scott Liggett
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Scott's 1967 GMC 1500 pickup
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Back in the 70's when I worked at the Chevy dealer, the u joints had plastic injected to hold them in the driveshaft. The mechanics would beat the living crap out of them. I never had problems changing u joints but then again I never did one held in place by plastic either. The replacement joints has clips from GM.Last edited by Huskinhano; September 16, 2015, 08:25 PM.TomOverdrive is overrated
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Originally posted by Huskinhano View PostBack in the 70's when I worked at the Chevy dealer, the u joints had plastic injected to hold them in the driveshaft. The mechanics would beat the living crap out of them. I never had problems changing u joints but then again I never did one held in place by plastic either. The replacement joints has clips from GM.
The caps looked like those magic snakes fireworks when you were done.
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Originally posted by tardis454 View Post
I've done plenty of those. I heat the u-joint up with a torch and melt the plastic out.
The caps looked like those magic snakes fireworks when you were done.
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So, after spending a couple of evenings replacing the u-joints in my driveshafts I went to install them. The front section went in perfect. the back section just would not go onto the splined rear of the front driveshaft. It is like it was too big. I fought with it for hours. Pulled the front half out and tried getting to go together on the bench. Nothing. Things got hit with my big hammer. I pulled both halves of this driveshaft from the same truck. I measured the old driveshaft splined shaft diameter and they are close by .002 to .005". But, no go. The splined yoke from old driveshaft doesn't fit. Both yokes fit the old splined end perfectly too.
So, this entire weekend I went backwards. I may just have the old front half shortened with a TH350 yoke and u-joint set up put on. Looking at options now. But, my scrap metal pile is getting bigger.BS'er formally known as Rebeldryver
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Originally posted by DanStokes View PostAre you sure that there isn't a blind spline? Some of the old Buick shafts had one "missing" spline so they'd only go together one way - this assures that everything is indexed correctly. Worth a look.
DanLast edited by Scott Liggett; September 21, 2015, 02:30 PM.BS'er formally known as Rebeldryver
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Originally posted by Deaf Bob View PostIf it mated before, therefore it must again..
...but man, I feel your pain. I hope the next attempt goes smoothly. I hate it when something that should be simple hangs me up! Sometimes it works if I walk away and come back later.Last edited by yellomalibu; September 21, 2015, 04:58 PM.
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this may be a dumb question, but are new yokes the same spline? its weird that they wont fit together. but Ive never dealt with 2 piece driveshafts.... my mustang has one, but ive not messed with it. and if I do, a single piece shaft will go in....Hellinor- 2005 Mustang GT-Bolt ons, in need of a turbo
War Wagon- 1966 Bel Air Wagon-355 Crate motor, 700r4, flies pretty good for a brick...
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did you try heating the female end up with a torch to expand it? maybe see if you can soak the male end in ice to shrink it? It could loosen the tolerance up just enough to slide in.Hellinor- 2005 Mustang GT-Bolt ons, in need of a turbo
War Wagon- 1966 Bel Air Wagon-355 Crate motor, 700r4, flies pretty good for a brick...
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