V730 Leaks in reverse

[zimmysurprise]

Hello all- just finished a 2000+ mile Great Lakes tour, the 4108 ran great but I have developed a decent transmission fluid leak, only when in reverse. (I left my mark at every campsite I backed into). I'll be digging into it this week but hoped some of the experts here might suggest the most likely culprit. My V-730 book and a search of old posts here didn't reveal many suggestions. Thanks!

[Bob Gilbert]

I would check back up light switch. Bob

[zimmysurprise]

Dead on Bob- it must have snapped off on one of those Michigan pot holes. My first thought was the Allison was just jealous of the Detroit leaking so much.