Well I know what they are and I wouldn't suggest using them on a steering box let alone a street car. Like I have told you many times parts for my car came from a NASCAR modified shop. And we also raced a sprinter . That is where you would use a quickener on a race car with long arm box or a rack. And they are not recomended by good car builders. Just a cheap fix. Notice the advertisment you have posted shows a listing for heim joints for steering joints that you said are junk.
These billet quickeners are good for coming off the turn with a winged car. The wing steers them in planting the left rear on entry. A good setup carries the right front on the straights
Only an idiot would put this billet aluminum system like this on a heavy street car with a box where they have road bumps and hazards. And then in place of your collapsible shaft and column. Take notice this is a race part. And is illegal for the street in many states. Don't use this system on a steering box car. Buy extended pit-man and idler arm. They are iron and are much safer even if you make your own.
And check out the underside of the gobbled together 1/4 mile car with old tech. sure looks as though safety was a priority to me.
To the OP stay away from this junk for a street car. Think Safety. Would you really trust your life to this system. Now this is my opinion you do what you want. Maybe talk to someone that designs complete suspension kits first.
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