wish the DLE 20RA manual wouldn't list the dubro mount as acceptable. I got the engine and mount from Tower last month. needless to say, it doesn't fit. I ended up getting some 1/2 " aluminum square stock from work and made spacers to fit between the engine lugs and the mount beams. I used 5 #8 cap screws per side to bolt it all together from the engine, to the spacer, to the beam. it works, but it was a pain.