I have a 69 Sat with a 528 Hemi and the Schumacher mounts with the TTI 2-1/8 " headers and power steering. At first, I got lucky by rebending a 440 dipstick, but it was kinked and hard to slide the dipstick in, even after I thinned down the stick it self, which finally broke off in the tube a year later. I finally bought the Mancini Racing Hemi/Headers dipstick assembly and after 20 minutes of wrangling(DUH!) it fell right into place! I don't know what I was doing wrong, but it finally just went into place with no modifications at all. If it had not worked, I was going to try the Milodon flexible assembly, but I am very happy with the Mancini setup.