Locating tab on trans case for u-joint but not on rear diff?

[Gene]

So i'm using a rear from a 91 Burb that doesnt have any locating tabs for the u-joint, but my trans case does? Do I need to find some caps that have them or what? I didnt get any caps with the rear and dont know if they sell them at parts stores?

[Transformula]

THose tabs you speak of are on yokes that accept "External-snap-ring" types of u-joints. The yoke without the tabs is for accepting an "Internal- snap-ring" type of u-joint. Do you have a 10-bolt rear? I've seen a lot of 10-bolts with those type, and the older 12- bolts have the external type. You will most likely have to change the yoke, or use a conversion u-joint.
Look at your driveshaft. Where the u-joint is attached, can you see the snap rings on the outside?

[Gene]

Originally Posted by Transformula

THose tabs you speak of are on yokes that accept "External-snap-ring" types of u-joints. The yoke without the tabs is for accepting an "Internal- snap-ring" type of u-joint. Do you have a 10-bolt rear? I've seen a lot of 10-bolts with those type, and the older 12- bolts have the external type. You will most likely have to change the yoke, or use a conversion u-joint.
Look at your driveshaft. Where the u-joint is attached, can you see the snap rings on the outside?

Yep, I had new u-joints installed and they are external clips. Guess I need internal ones? It is a 10 bolt rear. I have a 12 bolt truck rear, can I simply switch the yokes?

[Transformula]

I'm pretty sure the spline count and diameter of the pinion is different from 12 bolt to 10 bolt. So you will have to get a new 1310 or 1350 yoke. Those are already set up for a 1310 or 1350 u-joint with tabs. (You can specify which one you want). If you have a reputable driveline shop nearby, ask if they have a conversion u-joint that will connect your shaft to the 10-bolt yoke. I know they make them for going from a 1310 to a 1350, etc, but those are both external ring type. But in reality, I think that getting the yoke is the best bet IMO.