Separating a two piece drives shaft K2500 ECLB

[Crookedaxle]

I have my driveshaft pulled from the rear end. I pushed it forward to drop it about 3/4" with no problem. I dropped it and have only been able to pull it back a bit over an inch. What's holding it together? It looks like there's a rubber seal cap with a grease zerk in it. The cap just spins on the slip yoke and I can pop it off either. Been pounding the slip yoke backwards with a brass hammer and it ain't budging. 1993 GMC K2500 ECLB 4L80E 454

Looks like this.

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[evilunclegrimace]

Try pumping it full of grease

 

[Crookedaxle]

You get it apart by taking the entire drive shaft off the truck, hooking one end to a tree and the other end to your loader tractor and beating it apart with a brass hammer. I don't know why it was so damn hard to come apart, it was fiull of grease and isn't rusty at all. I couldn't separate it on the truck. I guess in the end it's just as easy to take the whole damn thing off anyways.

 

[Crookedaxle]

How does this work being out of phase like this? It looks all OEM to me when I pulled it apart, unless sealing it up with this blue **** (sealant?) is something you'd do after replacing the hanger bearing or something. The blue sealant on the splines matched the yokes missing spline. This is how it came apart and how I put it back together. Is it just the blue sealant on the male splines that match the missing spline in the yoke or is there a spline under there? In other words, is the missing spline on the yoke only or both the yoke and the male shaft? I put in all three universal joints today but will have to pull it apart again to do the hanger in the spring if it lasts that long. I didn't know what size I needed when I got the universal joints that I had to get in this weekend. But now the damn thing sits on my shop floor because I had a brain fart and got a rear seal for the Caitlyn Jenner instead of a transfer case like I should have. I'll get one tomorrow.

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[454cid]

How does this work being out of phase like this? It looks all OEM to me when I pulled it apart, unless sealing it up with this blue **** (sealant?)



is something you'd do after replacing the hanger bearing or something. The blue sealant on the splines matched the yokes missing spline. This is how it came apart and how I put it back together. Is it just the blue sealant on the male splines that match the missing spline in the yoke or is there a spline under there? In other words, is the missing spline on the yoke only or both the yoke and the male shaft? I put in all three universal joints today but will have to pull it apart again to do the hanger in the spring if it lasts that long. I didn't know what size I needed when I got the universal joints that I had to get in this weekend. But now the damn thing sits on my shop floor because I had a brain fart and got a rear seal for the Caitlyn Jenner instead of a transfer case like I should have. I'll get one tomorrow.

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I'm having a hard time following you.... blue sealant? You've got lots of yokes, and I'm not sure which ones you're talking about. The slip yoke will have a missing spline, and the spline shaft may have a matching wide spline to match.... not sure on this as my experience with the 2-piece shafts is limited. However, that missing spline is designed so that a shaft can only go together one way.

Caitlyn Jenner???

 

[letitsnow]

Trans... Try and keep up

 

[deadbeat]

I seen a factory 2500 2 piece shaft that was out of phase like that, a driveshaft shop I took it to said they see them every now and then.

 

[454cid]

Trans... Try and keep up

Oh.... I was actually thinking of one of the daughters. I don't pay attention to that family at all.

 

[454cid]

Looking at the first picture, I think the "blue sealant" is the grease applied for photo purposes. It normally would be shot into the slip yoke.

 

[letitsnow]

I don't pay attention to that family at all.

I do my best to ignore them too.