I have read a lot about using Thunderbird racks because they are more suited for the GM power steering pumps. Can anyone tell me what specific years are best for use with the GM Type II pump?
I am building a 1938 Chevy PU and the current rack is 40 years old. I either need to change it to the Thunderbird rack or change the flow control. If I change the flow control I still have a 40 year old rack to deal with. I am nearing the poiint that I need to take care of this. Any help would be most appreciated.