Whirlpool Duet Washer Basket Flange

Extreme banging noises and balance issues, I discovered the problem to be broken flange arms (2 of 3 arms) at the rear of the s/steel basket. The front tub is gouged and scored deeply resulting in lots of plastic scrapings and granules in the filter and around the bellows. However, the rear outer tub seems to be fine - no leaks around the seals and freely turning bearings. I’m replacing the basket and the front tub, but am curious as to whether I need to go ahead with replacing the rear outer tub. Also, when I disassembled the cabinet to remove the tub, it appeared the tub was riding lower in the rear than in the front. Is that normal, or do I need to also replace rear shocks?