Good deal! Before you order axles, think what rear brakes you want. If you can find a pair of backing plates from a big pattern 8 -3/4 diff, you can use the easy to get brake parts, like drums ect.. The drums for the A body 8-3/4 diffs are hard to find. The axles are different length for each. I know this because I have a 71 340 Demon with 5X4 bolt pattern, and need drums. The is a tech article at Moparmuscle.com.