07 ic ce300 Allison trans. check trans light on don't roll. move shifter all the through all gears then back to desired gear. code po875 pressure switch reverse ckt. dropped pan found a bolt laying at bottom of pan and one empty bolt hole through tube bracket and thru psm.im thinkin no brainer. except why did that come out. found out it was too short it was 50mm long like all the rest of the bolts, but it is suppose to be 65mm long. this one bolt is suppose to be longer than the rest. how this happened is beyond me. we bought this bus new and to my knowledge that was the first time the pan was down. just thought id share