More mis-information, you're talking about the D-44 A which had issues and then shops and dealers never re-did them right.
I have a D-44 and D-44-A they are not weak, when the off-road guys use them and they're bouncing them all over that is no good for any rear. . .
The D-44-A is what resides in the Vipers.... Ever see a Viper on stock diff and shafts run 7.40 with the manual trans
Still sure you wanna use the term weak or junk with a D-44 or D-44 A