Hey I need some advice on my truck just this winter it started to not go into reverse until warming up for about fifteen minutes after sitting all night once it has been warmed up it goes into gear just fine.. all forward gears work like normal cold or warm. It has 107,xxx miles. I need any helpful hints on what you think may be wrong. I have seen people do fluid and filter changes and have to replace the tranny after doing it so I don't want to do anything until I get some advice thanks!!