There are benefits to stock steering like having a sway bar for the road which makes a big difference. Also stock steering has less turns of the steering wheel lock to lock. I ran 32s with stock steering for years and never had an issue. I wish someone had come up with crossover steering that...
I'm not trying to get you to buy a new fuel pump but I can confirm that it fits an 85 4runner as I installed it in mine in 2015. It may not be the exact replacement as far as part number but it was easy to make work and is still going strong.