rear end advice

If you have a dial indicator with a magnetic base you can take the wheels and drums off and set up the dial indicator and spin the axles to see if they are bent. If you don't have a dial indicator and plan on installing a sure grip you need one for that so now's the time to buy it. You can get a cheap setup at Harbor Freight for about $30-35 that'll do the job.

Most A-body rearends were 10" brakes