Ive pushed it a few times...LOL but Ive been making sure not to break traction. Now to make it stronger could I weld the differential? Dont have much more time to drive the car and I know its hard on tires but would that even be worth it?
I would just bide my time this year and wait until you have the upgrade. That's just me. If you have a 727 especially, and the rear breaks, you will want to pull the trans and inspect it, IMO.
The 7 1/4 rear in my car was one of the first things that got upgraded when I bought it, now I can beat the piss out of it and have less worry.