It appears replacement subframe bushing kits from the reproduction parts outlets are being sent out without instructions or markings to show which bushings go where. I had this same problem a couple of years ago.
Here's a good description of the subframe bushings from the Camaro Restoration Handbook:
"The rear cushion set is the smallest; the outside diameter of both cushions measures about 2-1/8 inch. The center cushion set is a little different. The upper cushion (with the washer and the bushing) has an outside diameter of 2-1/2 inches. And the outside portion of this cushion can be identified by its height of 7/8 inch. This height is measured without the washer. For all practical purposes the cushions that don't have a washer for the rear and center cushion sets are interchangable. The cushion set that's used for the radiator core support also has an outside diameter of 2-1/2 inches just like the center cushion. However, it can be differentiated from the center cushion by its height; it's only 9/16 inches tall excluding the washer. And because of its unique (smaller) bushing diameter, only one of the washerless cushions will fit it."
When they talk about washer-less cushions - they means the halves without the metal inserts/sleaves.
2012 Mustang Boss 302 #1918, Competition Orange. FGF replacement 2006 Mustang V6 Pony, Vista Blue. Factory ordered. 2019 BMW X3 (Titled to the wife, but I'm always driving it for her. So I'm claiming it) Old projects, gone but not forgotten: 1967 FB 400, original CA car. After 22 years of work, trashed by the guy who was supposed to paint it. I had to sell it. 1980 Turbo Trans Am 1970 Mustang fastback, 351C 4Bbl, auto 1988 Mustang GT, 5 speed 1983 F-150 4x4, built 302 1994 Chevy K2500 HD 4x4, 454 TBI
Ricks Camaro's has a poly kit with all bushings bolts and rad support mounts for about 100 bucks with the pictures and descriptions of placement. Very good kit.
67 Verdoro Green 400 Front bench w/auto on column Now excepting- free, ready to bolt on, Pontiac Aluminum Heads... Thanks to John(Hammered)-- This project is REBORN!! http://s903.photobucket.com/albums/ac237/lupdiesel/