I am not sure, but I think maybe the frame bracket is on all frames. Don't quote me. I do remember one of my caprice, or impala having it. I think. But I could be wrong. Maybe.
1994 Chevrolet Caprice Classic Woody Wagon. (My toy)
2014 Chevrolet Silverado 2WD 2WT RCSB 4.3 ALLOY V6 (My daily)
1994 BMW 325i Cabriolet 2.5 I6 (My flip car that turned into wife's toy)
2007 Pontiac G6 VL 2.4 I4 (Wife's Daily)