New axles too short?

Hi

What would be the result of too short axles in 8.75 with old style sure grip?

In my case car is spinning tires in right directions when lifted off the ground, but will not drive when on the ground with driveshaft spinning.

My previous axles were longer as you can see in photos.

F4A63397-21B8-4BB8-92FF-C4C2DD7E2C24.jpeg

900D9B22-947C-4C98-BFA1-9AE98DC43A28.jpeg