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Greg Reimer 7376 · 03-21-2010, 05:51 PM

Check your Pittman arm. All 64-72 Chevelles use a Pittman arm that's the same length,but the tapered hole on the small end is larger on the 66-67 models. The 68-72 had a rather small hole in it. The proper fix is to locate a 68-72 arm,but if that's not happening,the Moog catalog shows the 66-67 drag link. If you put the earlier drag link on your 70,you need to readjust the tie rods considerably to get your toe in correct again.To compound the confusion, the number forged into the Pittman arm is the same. The holes were machined later,which explains how a part with one part number had two different size holes on them.

03-21-2010, 05:51 PM	#2
Greg Reimer 7376 VIP Member Join Date: Nov 2008 Location: Glendora,Calif. Posts: 1,135 Likes: 172 Liked 704 Times in 218 Posts	Re: Manual steering box on chevelle Check your Pittman arm. All 64-72 Chevelles use a Pittman arm that's the same length,but the tapered hole on the small end is larger on the 66-67 models. The 68-72 had a rather small hole in it. The proper fix is to locate a 68-72 arm,but if that's not happening,the Moog catalog shows the 66-67 drag link. If you put the earlier drag link on your 70,you need to readjust the tie rods considerably to get your toe in correct again.To compound the confusion, the number forged into the Pittman arm is the same. The holes were machined later,which explains how a part with one part number had two different size holes on them.