There are two straps that run from the bottom of the trans bellhousing to the center of each side of the motor on a small block auto trans combo. The one on the passenger side is one size fits all, the one on the driver side has two different lengths. was wondering if the longer one is for the 727 trans shorter one for the 904 a friend of mine said i don't need them i think he's wrong !!!!!!! any help would be great , couldn't find anything in the factory service manual on this thanks mike