Burnt71

Replacing my U joints in my 80 . Found a cracked Flange . All venders list 63 to 1979 , why is 80 to 82 dfferent ? can I use an earlier flange ? I'm taling about the flange the u joint presses into

MelWff

maybe your question is clear to others but for me I need to know are you talking about drive shaft u-joints or half shaft u-joints. If drive shaft, trani end or rear end, if half shaft, differential or wheel.

Burnt71

Working on the half shafts. the flange that the u joint presses into is cracked . venders only list to 1979 i have an 80

Burnt71

Is it because of different size universals ?

Antz81

Do you mean the yoke on the diff or the trailing arm? Or is this on the half shaft itself?
The length of the half shafts changed for the 80-82 cars, they also have different u joints depending on year and transmission.
Why do you keep saying flange? Do you have a flange at the trailing arm? On a stock '80 there shouldn't be a flange, you should have a yoke like the diff end does.
A photo may help.

MelWff

the outer half shaft flange wasnt listed in the Dec 83 Corvette parts book and i cannt find it either from the aftermarket vendors. You may have to buy a complete half shaft with the flange already installed.

redvetracr

I believe I have one or two of those, if you or anyone else is interested send a PM

Burnt71

OK I just won the bonehead of the year award. I'm working on 3 cars at the same time , 1980 , 1977 and a 64. I put the trailing arms I rebuilt for the 77 on the 80 . the flange on the 77 trailing arm requires it to be bolted on. the 80 universal sits in the trailing arm flange. I was scratching my head on this one . Thanks for the help , My screw up.

Antz81

now it all makes sense. Glad it's all sorted