Bruce R
Well-known member
What's a good choice for a junkyard power rack to put in a 40 Chevy with the original IRS ?
Power rack
- Thread starter Bruce R
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zzrodder
It ain't grey hair, it's chrome!
What you need to look for is one that most closely matches the mounting points of the lower A arms to the inner joints of the rack. The idea is that they pivot at near the same distance apart so that the tie rods will move in a similar arc to the lower A arms, to prevent bump steer.
From what I've seen in online pics, the lower A arm mounts are pretty close together, so it is going to be something of a compromise. I found a similar problem with a G body front end on my 34 Caddy, I used a Ford Explorer rack and at extreme compression and extension of the suspension it would toe in some what.
However you will also need a rear steer rack, so the typical Mustang/Explorer won't work for you, try looking in the boneyard at some FWD GM cars and get the pump that goes with the rack too, to ease the install.
From what I've seen in online pics, the lower A arm mounts are pretty close together, so it is going to be something of a compromise. I found a similar problem with a G body front end on my 34 Caddy, I used a Ford Explorer rack and at extreme compression and extension of the suspension it would toe in some what.
However you will also need a rear steer rack, so the typical Mustang/Explorer won't work for you, try looking in the boneyard at some FWD GM cars and get the pump that goes with the rack too, to ease the install.
Bruce R
Well-known member
I’ve been told to look for a mid- 80’s Buick Skylark, sound right ?
BlueNorther
Well-known member
I think you mean IFS?
look at a power steering rack from a 88-93 cavalier they have tie rods mounting in the center of rack and mount on each end to the bottom of your frame.
there a couple of web sites that show you how to set it up, including drawings of the brackets
look at a power steering rack from a 88-93 cavalier they have tie rods mounting in the center of rack and mount on each end to the bottom of your frame.
there a couple of web sites that show you how to set it up, including drawings of the brackets
