This rear end was modified for leaf springs to fit a Chevy Nova but I am pretty sure it's an Old rear end. I'm not too versed on rear end's so I would really appreciate some help identifying it.

It measures approx 62" end to end from the wheel mounting surface. Has 334 stamped on the punkin. I pulled the spring and pin thinking it was seized up but it is not.

 

if it is olds it should have letters stamped on housing tube just to the right of the vent on passenger side!