Andy, the important thing about the block height is as noted by Mar-Ktech above. It is the combined height of cross sill, bracket, block and pad that must match the height of the rear sill mounting bracket and pad. Not all vendors make their cross sills the same height so be sure to check yours, including the small cross sill bracket, before trimming your blocks. For that reason the block height is not a "one size fits all" situation.
Mark
Last edited by 59 fleet; 09/18/2020 2:50 AM. Reason: fixed error
