I'm pretty sure the uppers (original are riveted) so you do replace them with bolted ones. If I remember right the bottom ones are pressed in and need to be pressed out and the new pressed in.


Joe - (Buckeye Bowtie)
"Remember it takes about 2850 bolts to built a Chevy Truck and only 1 NUT to scatter them all over the highway"

1950 3100
1971 C-10
1939 Buick Century