Towing Question
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Laughing Gas
Joined: Sep 2012
Posts: 1,123
Likes: 1
From: Ontario, Canada
Towing Question
I remember hearing that our transmissions can have a tendency to spit out transmission fluid when backing up a grade. Does this really happen?
I've heard the solution to this is to use 4 low. Does this fix the problem? Is it safe to use 4 low on dry pavement when backing up your trailer?
Thanks for helping me with these questions I looked around a bit and couldn't find anything.
I've heard the solution to this is to use 4 low. Does this fix the problem? Is it safe to use 4 low on dry pavement when backing up your trailer?
Thanks for helping me with these questions I looked around a bit and couldn't find anything.
Lead Driver
Joined: Jun 2013
Posts: 5,647
Likes: 891
From: north of Minneapolis, MN
Mark K will answer the technical. But what is happening is the slip of the fluid coupling in the torque converter causes the fluid to overheat (no airflow to cool anything) and the front seal gets overly supple from the heat, causing a leak. Cool it down, leak stops.
Some people do use 4L, manual hubs unlocked, to back into parking areas with.
Some people do use 4L, manual hubs unlocked, to back into parking areas with.
More Turbo
Joined: Nov 2012
Posts: 727
Likes: 1
From: Chariton, IA
I use 4 low all the time, especially backing the hay trailer into the barn, but I leave my hubs unlocked. If you have auto hubs you could try it, but if you are getting the "wheel hop" while turning, I wouldn't use it.
Elder User
Joined: Jul 2009
Posts: 768
Likes: 1
From: Live VT, Work MA
As Dan said, if Mark K pops in he will address any technical pieces but I remember him saying this approach effectively changes the ratio from 3.73:1 on a 3.73 rear to something like 13:1 or thereabouts.......this goes a long way to keeping the tranny in a happier place from what I believe I have read, but someone who actually knows the specifics will probably chime in.
Posting Guru
Joined: May 2006
Posts: 1,427
Likes: 1
From: Bryson City NC
I also use 4w lo to back up my 5ver . I have a slight uphill on my drive and the trans would always heat up fast!
Now backing in 4 lo hubs unlocked is a breeze . Seems to have more control on backing and no heating up!
Smokie
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