Kenyon, You are correct. The police steering boxes were valved for better road feel, a.k.a. Firm Feel steering. The faster ratio boxes in the non-Imperial Mopars were all in the pitman arm. The Imperial pitman arm is not clocked properly for a drop in solution for those cars, but it is possible to file down the key and make them work. But to spare the Imperial world from having their pitman arms harvested with the 440's, the aftermarket introduced a long pitman arm and matching idler. I do not know of a super-long arm for use on the large police cars, but I suppose it is possible. Those police cars are a good source for power steering coolers and transmission coolers. I have a pair on the shelf for future use. Rob McCall '67 LeBaron -----Original Message----- From: mailing-list-owner@xxxxxxxxxxxxxxxx [mailto:mailing-list-owner@xxxxxxxxxxxxxxxx] On Behalf Of Kenyon Wills Sent: Friday, January 12, 2007 9:55 PM To: mailing-list@xxxxxxxxxxxxxxxx Subject: Re: IML: COOLER THOUGHT/Quick ratio boxes I looked into a "quick ratio" box. The folks at Firm Feel said that they're all the same, or at least the ones that fit Imperials and most muscle applications. The difference comes when mere mortal Mopar cars get the Imperial idler and pitman arm installed on them. The Imperial arm is about an inch longer, and this changes the amount of swing you get for a given input. I'm not saying that there isn't a quick ratio box, but was told that its in the arms. -K ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm