So on my 94 K2500 Chev Burb, the front ujoint at the transfer case dried out and was making 4x4 really rough. I got the shaft off and the old u joint out without much issue. Go to fit the new u joint and the cap slides right through. So I measure them, the old cap and opening is 1 1/8". The new u joint is 1 1/16". According to everywhere I look the replacement size is 1 1/16". Is this right? The cap won't stay in on its own (obviously I know it needs the snap rings but I assumed it should be at least a close to tight fit. Is there that much of a gap on new u joint caps?

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2009 ML320 Bluetec
1985 300CD
1981 300TD

Past Mercedes
1979 300TD
1982 300TD
2000 E320 4Matic Wagon
1998 E430
1984 300SD
1980 300SD