I picked me up a 20 ton press from harbor freight finally. First use is for a transmission rebuild. I quickly found out that I need the base opening wider...it current measures four inches and I need about six to get gears inbetween. I have not been so lucky searching for ideas on widening this sucker. This is my first press and I was tempted to just lower the base and put cinder blocks on top to get my needed width...but not sure how safe that would be. I was thinking of cutting the straps and bolting in some extensions, but once again I am not sure if that will kill the structure Any ideas?