How to identify U-joints?

Is there any visual way to identify u-joints? Im trying to find out how to tell if a D44 im looking at has the old 260x joints, or the 297x (or 760x) joints.

760 have a circle in the centre 297 are bigger than 260

Whats the D44 out of?

RCP Phx said:

Whats the D44 out of?

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F150 or bronco. Unsure of year. Also looking at a waggy 44

measure the diameter of the caps.

But what diameter is what joint?

Jeep450r said:

But what diameter is what joint?

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IIRC 1 1/16" is a 260 and 1 3/16" is 297/760

Jeep450r said:

F150 or bronco. Unsure of year. Also looking at a waggy 44

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Regaurdless, those should all be 297/760. I think only EB D44's got some jointed shafts maybe

I read that all broncos had 260x joints. Maybe I read wrong.

Can anybody confirm the measurements above?

A tool/trick a buddy told me about when junkyard browsing(if you don't have a measuring tape), is to find an old POSITIVE THAT YOU KNOW smaller joint. Take your vise grip pliers and adjust them to the size of the cap.

Then, when you find one that you THINK is a bigger joint, use your pre-measured out vise grips to compare. The difference will be quite apparent. I tried using a socket for this, but with the pliers the difference is much much more pronounced. Also, if there is an ABS toner ring, i'm 99.99999% sure it's the bigger joint. I've seen an 89 XJ with them.

But if you MUST get technical, 297s have a cap diameter of 1-3/16"(about 30mm), 260s have a cap diameter of 1-1/16"(about 27mm). So FOXWAR is on da'money.

Perfect. Thank you very much, all of you.