Stock Ratio on a power steering box

[adamforsythe]

Hello,
What is the Stock Ratio on a power steering box fore a 1986 K5 Blazer??????
I'm thinking of getting a new one that is 12:1
Thanks
Adam

 

[readymix]

I believe it is 16:1

 

[dyeager535]

12:1? That'd be something like 2 turns lock to lock IIRC. "High performance" GM cars had ratios like that.

At higher speeds that would probably be fine, but at low speeds that is probably going to be pretty darn hard on everything. (you, pump, etc)

What's the reasoning?

 

[adamforsythe]

I want to replace it. I know my gear box is hurting so is my power steering pump. I just found that on summit.....so I need to look for one that is 16:1.
Thanks
Adam

12:1? That'd be something like 2 turns lock to lock IIRC. "High performance" GM cars had ratios like that.

At higher speeds that would probably be fine, but at low speeds that is probably going to be pretty darn hard on everything. (you, pump, etc)

What's the reasoning?

 

[4X4HIGH]

Most GM truck steering boxes are variable ratio and IIRC they go from 16:1-12:1.