No backward move but only forward with serious slip

[als804]

Hell i feel like my transmission th400 in M1009 is burnt. It looks normal but malfunctions. Fluid level is normal and shift linkage is normal . After i did very hard mudding with m1009 i noticed sth is wrong.
The problem is move forward only with very serious slipping. Actually almost no move. If i put in reverse, it goes forward only with serious slipping. I feel like i can’t shift it but linkage looks normal and move.
At P R N D 2 1, it barely move forward only

any idea?

 

[porkysplace]

Have you smelled the fluid ? Does it have a burnt smell and dark color ?
Sounds like burnt clutch packs or internal seal failure .

 

[cwc]

Going forward in reverse after "very hard mudding" could be that the forward clutch plates welded together as a result of extreme heat from slipping.

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[WWRD99]

Going forward in reverse after "very hard mudding" could that the forward clutch plates welded together as a result of extreme heat from slipping.

Sent from my motorola one 5G UW ace using Tapatalk

Probably binding the gears in the sun with the band too.

 

[Sharecropper]

After i did very hard mudding

any idea?

Yes. I suggest you consider stop mudding.