722.0 B3 (reverse) band adjustment
My 450SLC was starting to slip a little in reverse, especially under load (e.g. up a hill). The transmission was shifting gears very well other than this one area, and the fluid looked clean and at the right level. The 450SLC uses the 722.0 transmission, which unlike the later models has an adjustable B3 band (which is used for engaging reverse). This...