1995 F250 ECLB Rear drive shaft

teddy's6.0h · Oct 13, 2014

So I replaced the u joints cause I had some play & wobble. I used O Reilly's MasterPros 331s. The one at the transaxle & carrier bearings are great. But when I went for a test drive the one at the transaxle lost a cap. I did notice 2 things, when I installed those caps on the one that fell of it went in so easily. So either I got the wrong one or my drive shaft is worn. It's a 2 piece shaft so can I just buy the rear part of the shaft? Or did I get the wrong u joint? All info appreciated thankS!

backwoodsboy · Oct 13, 2014

You should have 1330F for the front joint and 1350 for the pinion joint.
1330F is a typical 1330 with caps that are 1/16 oversize.

I would also avoid parts store u-joints. I played that game with some 'lifetime warranty' AutoZone joints and got tired of replacing them every 5k miles. Went with Spicers and haven't looked back.

teddy's6.0h · Oct 13, 2014

1330 for the one at the transfer case & 1350 for the one at the axle, got it. What about the center u joint?

teddy's6.0h · Oct 13, 2014

Also I just checked specs on both. The u joint I used from oreillys Cap OD is 1.188" the spicer cap OD is also 1.188". The only difference I saw was the length spicer is 3.625" & oreillys is 3.622". I'm not saying I don't appreciate the spicer part numbers cause I do, I couldn't find them before & that's why I got these. But would that .003" really give it enough slop to cause the cap to fall off while driving? Or should I assume it's the shaft?
Thanks again.