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Purdy Swoft · 08-13-2014, 08:57 PM

Most times there will be a bit of frame sag in the rear motor mount area . When the solid cross member that the original mounts create is replaced with float-A-motors some sag usually can occur. This and over eighty years of age causes the chatter. Sag at the rear mount area also causes the frame rails to move inward slightly. I recommend the use of a frame spreader if at all possible. Before I got my frame spreader I was forced at times to resort to a bumper jack,Very awkward and a porta power jack that worked better but not as good as the tool made for the job . Any time that the pads are replaced a frame spreader makes the job easier.

08-13-2014, 08:57 PM	#9
Purdy Swoft Senior Member Join Date: May 2010 Location: Alabama Posts: 8,099	Re: Changing Engine Mounts Back to original Most times there will be a bit of frame sag in the rear motor mount area . When the solid cross member that the original mounts create is replaced with float-A-motors some sag usually can occur. This and over eighty years of age causes the chatter. Sag at the rear mount area also causes the frame rails to move inward slightly. I recommend the use of a frame spreader if at all possible. Before I got my frame spreader I was forced at times to resort to a bumper jack,Very awkward and a porta power jack that worked better but not as good as the tool made for the job . Any time that the pads are replaced a frame spreader makes the job easier.