U-joint issue

[AR67GTX]

I bought a new trans yoke and adaptor U-joint from Mancini Racing to fit my driveshaft and started installing it today. The cups in the driveshaft were fine but like an idiot I started installing the cups on the yoke before I took a close look at the clips they sent with it. I've never dealt with a clip of this design. I thought the yoke cups took an inside clip - but this is what I got. Where and how the heck does this thing install???



Before someone say it - no the cups are not fully seated in the yoke yet.

To add to my confusion Spicer doesn't even seem to sell this u-joint anymore - I keep getting Google leads showing it as obsolete. I managed to find it once on a Spicer site but I think it was a generic u-joint illustration as it showed standard exterior clips on all 4 corners. I think this yoke uses internal clips as it's a 7290 yoke and the u-joint they sent is described as a 7290/1330 u-joint (p/n SPI 5-635X.

Anyone have any idea how these clips install??? Afraid I'm going to have to pound this thing out again.

 

[miller]

I think this yoke uses internal clips as it's a 7290 yoke and the u-joint they sent is described as a 7290/1330 u-joint (p/n SPI 5-635X.

Image won't load for me, so can't look.
But, I had to use a like combo u-joint at my rear axle. Depends on the u-joint needed for that receiver. Does the joint have small tabs at the ends, where the u-joint fits in? If so, no clip is needed, since the built in tabs on the joint, keep the u-joint in place. But, I also ran into, finding out there are differences in the sizes, some not much, between different u-joint numbers.
Also had issues, on the strap sizes, for my 1330 joint. Two sets of Spicer 1330 straps, not right...mine took a set of 7260 straps! Big difference, length wise, between 7260, and 1330, but the 7260 straps slipped right on.
Good luck on it!

 

[AR67GTX]

Miller - not sure why you can't see the picture but I'll try re-posting it. This is the weirdest u-joint clip I've run across and Googling u-joint clip photos I couldn't even find an image of one. It's definitely a 7290 yoke so I'll probably just go buy another 7290 u-joint for the clips.

 

[miller]

See what you mean. Most clips I've used have a hook on each end of the clip. New, and improved? Don't get me going on that. Don't have the old clips? Could be wrong size anyway.
I did manage to find alot of info on u-joints, mostly via driveshaft websites, for what that's worth.

 

[AR67GTX]

No - my original yoke was a 1330 and this one was the only one I could find that fit the older tail shaft splines. I have a combination 1330/7260 on the rear (non-orig rear end) and I need to see if I have kept any spare 7260 "C" clips for it. I guess I could try cutting the hump off of these to make a "C" clip out of them but that may be a lot of trial and error. Probably just go buy a 7290 u-joint to get some "C" clips.

 

[AR67GTX]

No - my original yoke was a 1330 and this one was the only one I could find that fit the older tail shaft splines. I have a combination 1330/7260 on the rear (non-orig rear end) and I need to see if I have kept any spare 7260 "C" clips for it. I guess I could try cutting the hump off of these to make a "C" clip out of them but that may be a lot of trial and error. Probably just go buy a 7290 u-joint to get some "C" clips.

I pity the next guy who decides he want to replace the u-joints on this thing.

 

[miller]

Know what you mean! No matter...if it works. My 67 8 3/4 rear has a 1330 yoke on it. Rest is 7290, on my new shaft.

 

[mrsnicks]

The clip you don't have installed goes on the end of the driveshaft where it sits in the pinion yoke. There are 2 on each side and a bar that holds end caps of the ujoint on when the driveshaft is out of the pinion gear yoke. I'll try to take a picture of mine today.

 

[AR67GTX]

Gave up and bought another u-joint with standard C-clips.

Thanks

 

[Mike67]

Looks like a malformed clip... But just googling I found this which is an inboard c clip...not exact but similar...

 

[Fran Blacker]

Looks like the bent side of ring would go away from the side of yoke. these are probably the pliers needed. Just buying another u-joint is quicker which is what he did.
http://www.tooltopia.com/otc-tools-...intid=OTC714&gclid=CJ_cxbTcidMCFQx6fgodCh8LZA

 

[69Bee]

As said, these would be on the rear end caps with a strap between the two so that the caps would stay in place until it was assembled on the car. If the original joint had inside c clips, you could use them.

 

[miller]

Depends on the yoke itself, and what size u-joint it takes. Three different ways a u-joint is locked into the yoke...1)the yoke has a outer 'tab' that fits against each end of the u-joint, 2)uses a C clip, that fits a groove in the u-joint cups, and goes against a machined surface inside edges of the yoke, 3)the yoke itself has grooves cut near the outer edges of the bores, where the u-joint fits, locking the ends of each cup into place. That's the type in the photo...and the weird bends on the clip are needed, to be able to install/remove into the groove. Don't use just C clips there...no way to get them out. The one loose clip in the pic, wasn't completely formed right.

 

[Fran Blacker]

Depends on the yoke itself, and what size u-joint it takes. Three different ways a u-joint is locked into the yoke...1)the yoke has a outer 'tab' that fits against each end of the u-joint, 2)uses a C clip, that fits a groove in the u-joint cups, and goes against a machined surface inside edges of the yoke, 3)the yoke itself has grooves cut near the outer edges of the bores, where the u-joint fits, locking the ends of each cup into place. That's the type in the photo...and the weird bends on the clip are needed, to be able to install/remove into the groove. Don't use just C clips there...no way to get them out. The one loose clip in the pic, wasn't completely formed right.

Agree with all you wrote. Was thinking that the bend was to make it easier to remove? Think it would have been easier to put u-joint on yoke first? I know I wouldn't have thought of that until I installed u-joint on drive shaft and seen the issues.

 

[miller]

Was thinking that the bend was to make it easier to remove?

Yes. Those 'outer' type clips, get installed inside the yoke bores, in a way blind. Means there needs to be a way to collapse the clip...so those bent ends. Though, I've seen a few different ways, the ends were bent. Sure, C clips will go in there...but a pain to get back out.
C clips just slip into place, since those grooves are exposed. Either push 'em into place, or push on one of the ends, to take it off.

 

[Fran Blacker]

I was thinking you needed pliers to expand the clips. You'd put them on the cross shaft then expand them to put on inside of cups?
Would like to see them in front of me or against a ruler to see the diameter.

 

[miller]

Difference between an external clip (C type), or internal clip (bent ends).
Should be able to look at them, off a driveshaft website.

 

[69Bee]

You guys are WAY over thinking this. The driveshaft uses external clips that are installed with pliers, the yoke uses internal C-clips that just snap onto the cups by finger pressure. The loose clip shown is used for the rear joint on the cup that go into the rear end. The extra loop is for a strap to retain the cups before it is installed.

 

[Fran Blacker]

Your right they would be used on rear u-joint. Why not for the front?

 

[AR67GTX]

You guys are WAY over thinking this. The driveshaft uses external clips that are installed with pliers, the yoke uses internal C-clips that just snap onto the cups by finger pressure. The loose clip shown is used for the rear joint on the cup that go into the rear end. The extra loop is for a strap to retain the cups before it is installed.

I see what you mean about a yoke with retainer U-straps such as at the rear. Unfortunately this was for the yoke at the front. You would think Mancini would have thought about that since I purchased it with the yoke.